hi I would like to know those answer are false with explanation please thank you

Eduardo spends his entire income on 9 sacks of acorns and 4 crates of butternuts. The price of acorns is 6 dollars per sack and his income is 90 dollars. He can just afford a commodity bundle with A sacks of acorns and B crates of butternuts that satisfies the budget equation O a. None of the choices are correct. O b. 6A + 13B = 92. O c. 12A + 18B = 180. O d. 6A + 11B = 90. e. 9A + 4B = 90. X The correct answer is: 12A + 18B = 180. Ernie's utility function is U(x, y) = 32xy. He has 10 units of good x and 8 units of good y. Waldo's utility function for the same two goods is U(x, y) = 3x + 5y. Waldo has 9 units of x and 13 units of y. Which of the following statements is true? a. Ernie prefers Waldo's bundle to his own bundle, but Waldo prefers his own bundle to Ernie's. b. Waldo prefers Ernie's bundle to his own, X but Ernie prefers his own bundle to Waldo's. c. None of the statements are true because utilities are not comparable. d. Each prefers the other's bundle to his own. e. Neither prefers the other's bundle to his own. The correct answer is: Ernie prefers Waldo's bundle to his own bundle, but Waldo prefers his own bundle to Ernie's. For utility function u = (.7xy) + 17, Marginal rate of substitution of y for x when the consumer has 5 units of x and 7 units of y is a. 7.1. b. 4.6. x O c. 5.8. O d. 3.7. O e. 1.4. The correct answer is: 1.4. Peter's utility function is given by u = 17 (x3y2). His demand for x ( with income m and prices p) is a. .6m/px. b. 3m/px. c. 17m/px. O d. 17m/3px. e. 17m/(3px + 2py). x Your answer is incorrect. The correct answer is: .6m/px