The cost of a bachelor's degree in philosophy equals the tuition plus the cost of room and board

A utility-maximizing consumer is currently spending all of his/her income on two products, A and B. The MU of the last unit of A consumed is 50, the price of A is $25, and the price of B is $10 . The MU of the last unit of B consumed is:

a. 50. b. 5. c. 2. d. 20. e. cannot determine from this limited information

Suppose that Congress were to institute an investment tax credit. What would happen in the market for loanable funds?

a. The demand for loanable funds would shift left. b. The supply of loanable funds would shift left. c. The demand for loanable funds would shift right. d. The supply of loanable funds would shift right.