Advanced Analysis, let MUa=z=10-x and MUb=z=21-2y, where is marginal utility per dollar measured in utils, x is the amount spent on product A, and y is the amount spent on product B. Assume that the consumer has $ 10 to spend on A and B_that is , x+y=10. How is the $10.00 best allocated between A and B? How much utility will the marginal dollar yield?