Please help me with the questions only answers are ok.

Question 7 2 pts Consider an individual with preferences over apple juice (AJ) and orange juice (OJ). This individual has a constant marginal rate of substitution of orange juice for apple juice equal to 3, with apple juice drawn on the vertical axis. Consumption bundle A contains 6 glasses of apple juice and 5 glasses of orange juice per week. Consumption bundle B contains 5 glasses of apple juice and 7 glasses of orange juice per week. Which of the following statements are necessarily true? 0 The consumer prefers bundle Ato B. Q The consumer prefers bundle B to A. O The consumer is indifferent between bundles A and B. Q We cannot tell without knowing the price of applejuice and the price of orangejuice. O The consumer is not maximising utility. Question 9 2 pts The budget constraint for a consumer who only buys apples (A) and bananas (B) is PAA + PBB = I where consumer income is I, the price of apples is PA, and the price of bananas is PB. To plot this budget constraint in a figure with bananas on the horizontal axis, we should use a budget line represented by the equation: O A = -IIPA + (PB/PA)B O B = -IIPB + (PA/PB) A O B = IIPB - (PA/PB) A O A = IIPA - (PB/PA)B O B = -IIPB + (PA/PB) AQuestion 10 2 pts Arthur and Martha have preference over two goods---beer and pizza. Martha pays twice as much for both beer and pizza when compared to Arthur's price. Arthur and Martha both claim that they have achieved their highest possible utility, subject to their individual budget constraints. Which of the following statements are necessarily true? 0 They both have the same marginal utility for beer. 0 They both have the same marginal utility of pizza. 0 Arthur's marginal rate of substitution of beer for pizza is smaller than Martha's marginal rate of substitution of beer for pizza. 0 They both have the same marginal rate of substitution of beer for pizza. 0 Arthur's marginal rate of substitution of beer for pizza is larger than Martha's marginal rate of substitution of beer for pizza