Marsha Mellow is very flexible. She consumes x and y. She says, "Give me x or give me 5:, I don't care. I can't tell the difference between them ."' (hint: so it and y are perfect substitutes) She is currently endowed with 8 units of x and 17 units of y. The price of y is 3 times the price of x. Marsha can trade 1:: and y at the going prices but has no other source of income. How many units of y will Marsha consume? yl D41 9 none of the above 7. Mark's utility function is xAxB. The price of apples was 13; and the price of bananas was 255