PLEASE HELP I don't understand spanish

Which is the first step in marginal analysis? A) Determine what price the company wishes to charge for its products. B) Identify fixed and variable costs for specified quantities of product. C) Find the marginal cost of producing one additional unit of a product. D) Calculate the marginal revenue of producing one additional unit of a product.:-- --: show that a closed rectangular box of maximum volume having prescribed surface area s is a cube. An arrow is launched upward with a velocity of 256 feet per second from the top of a 80-foot stage. What is the maximum height attained by the arrow? Consider a small economy with autonomous consumption of $700 billion, a marginal propensity to consume (MPC) of 0.5, planned investment of $150 billion, government spending of $100 billion, and net exports of $50 billion. 4th attempt Part 1 (3 points) Determine aggregate expenditures (AE) in this economy when real GDP (Y) is equal to $1,500 billion, $2,000 billion, and $2,500 billion. When Y = $1,500 billion, AE = ___ billion When Y = $2,000 billion, AE = ___ billionWhen Y = $2,500 billion, AE = ___ billion. True or False finding an eigenvector of a might be difficult, but checking whether a given vector is in fact an eigenvector is easy? Write a grammar for a language whose sentences start with a non-zero number of as, end with a non-zero number of cs, and has a non-zero number of bs in between The coach needs to select 7 starters from a team of 16 players: right and left forward, right, center, and left mid-fielders, and right and left defenders. How many ways can he arrange the team considering positions?DO NOT PUT COMMAS IN YOUR ANSWER!! PARTE A: Escribe la letra de la forma correcta.1. Mis padres (a. eran b. fueron) ricos.2. Yo siempre (a. deca b. dijo) la verdad.3. Pablo (a. coma b. comi) en la cafetera ayer.4. Vosotras (a. saltabais b. saltasteis) a la cuerda a menudo, verdad?5. De repente, la chica (a. sala b. sali) de la clase.6. Mi madre estudiaba el francs cuando (a. era b. fue) joven.7. Ella (a. tena b. tuvo) los ojos verdes.8. Pilar y Ana (a. eran b. fueron) bonitas.9. Mi hermana (a. pona b. puso) la mesa mientras yo (a. lea b. le) el peridico.10. Cundo (a. llegaba b. lleg) Marcos?11. El hombre (a. cantaba b. cant) cuando la mujer (a. llegaba b. lleg).12. (a. Eran b. Fueron) las tres de la tarde.13. Mi padre (a. venda b. vendi) su casa por dos mil pesos el mes pasado.14. (a. Haca b. Hizo) fresco en las montaas.15. El nio (a. empezaba b. empez) a llorar.16. Es verdad que vosotros (a. salais b. salisteis) de Madrid anteayer?17. Cada da los chicos (a. miraban b. miraron) la televisin18. Cenicientas (a. quera b. quiso) ir al baile.19. Casi todos los veranos mi abuela nos (a. visitaba b. visit).20. (a. Llegbamos b. Llegamos) a la ciudad anoche.21. De vez en cuando Teodoro (a. sala b. sali) con Mariana.22. Cuntos aos (a. tena b. tuvo) ella?23. Hace una semana que yo (a. iba b. fui) a la casa de mi amigo.24. Don Felipe y su esposa (a. eran b. fueron) espaoles.25. Cmo (a. se llamaba b. se llam) la hija de don Felipe? Need to take 1000 mg of calcium and 600 units of vit D Daily. Available is a bottle of calcium carbonate vit D3 250mg-125 unit tablets determine s for the phase change of 2.80 moles of water from liquid to solid at 0.0 c. (h = -6.01 kj/mol) For the given parametric equations, find the points (x, y) corresponding to the parameter values t = -2, -1, 0, 1, 2. x = In(8t2 + 1), t y = t +9 t = -2 (x, y) = ( 3.5, 7 t = -1 (x, y) = 2.2, - 1 1 8 x t = 0 (x, y) = (0.0 t = 1 (x, y) = 2.2. 1 10 X t = 2 (x, y) = -(3.5, 11 X 41. Explain how the global economic depression of the 1930s contributed to Japan's role in WWII Test Your Understanding 1. Mr Jones would like to calculate the cost of using 32 kl of water per month. Study the water tariff table below and calculate the difference in cost that Mr Jones would have to pay from 2014 to 2015: Prices per kilolitre excluding VAT k < 9 k < 25 kl < 30 k < 32 0 9 25 30 2014 nil R13,51 R17,99 R27,74 2015 LOWA nil R14,79 R19,70 R30,38 C Would you consider conducting a cross-tabulation analysis using MLTSRV and MFPAY?Select one:a. No, it doesnt make any sense trying to establish a relationship between these two variablesb. Yes, they are both nominal variables taking on two values each. So a 2x2 makes sense. the data-to-ink ratio is calculated by dividing the amount of data-ink by the amount of data ink to obtain a percentage Indicate whether the listed components of an immune response interact directly with an antigen, or if presentation of the antigen by an antigen-presenting cell is required. Labels may be used twice. Macrophage B cell Cytotoxic T cell Antibody Helper T cellInteracts Directly with Antigen Interacts with Antigen Bound to Antigen- sawyer corporations 2018 sales were $5 million. its 2013 sales were $2.5 milliona.At what rate have sales been growing? Round your answer to two decimal places. b.Suppose someone made this statement: "Sales doubled in 5 years This represents a growth of 100% in 5 years; so dividing 100% by 5, we find the growth rate to be 20% per year." Is the statement correct? -Select- The statement is correct because 100% divided by 5 equals 20% -The statement is incorrect because there are 6 years of sales growth between 2013 and 2018. -The statement is incorrect because a company's sales cannot double in such a short time span. -The statement is incorrect since the effect of compounding is not considered. The statement is correct since the effect of discounting is considered. You want to buy a car, and a local bank will lend you $30,000. The loan will be fully amortized over 5 years (60 months), and the nominal interest rate will be 7% with interest paid monthly. What will be the monthly loan payment? What will be the loan's EAR? Do not round intermediate calculations. Round your answer for the monthly loan payment to the nearest cent and for EAR to two decimal places. One of the reactions that is often studied in equilibrium experiment is: NH3 + H2O NH4 + OHWhat would happen to the concentration of NH3 if you added some pure water to the reaction? briefly explain Solve the following equations: 3x+5=x+12 When transaction costs are high, we would expect to see:A. More inter-firm alliancesB. Smaller more specialized firmsC. Frequent arms-length market exchangesD. Less merger activity