Jim earns utility from buying Jello (J) and Bobbleheads (B). He has the following utility function: ( ) ? ? . Jim has an income of $120 to spend on both goods. What is the marginal utility Jim earns by consuming Jello? What is the marginal utility Jim earns by consuming bobbleheads? If the price of Jello is $1 and the price of bobbleheads is $3, what is Jim’s budget constraint? How much Jello and how many bobbleheads will Jim purchase?