Suppose a firm has a variable cost function VC = 20Q with avoidable fixed cost of $50,000. What is the firm's average cost function?

A decrease in the interest rate, other things constant, will: a. shift the supply of loanable funds curve to the left. b. shift the supply of loanable funds curve to the right. c. decrease the quantity of loanable funds demanded. d. decrease the quantity of loanable funds supplied

e. shift the demand for loanable funds curve to the right.

All of the following, except one, would increase the demand for a particular model of a Ford automobile. Assume that this model is a normal good. Which is the exception?

a. an increase in buyers' incomes b. increased prices of other Ford models c. an expected future increase in the price d. an increase in the U.S. population e. a decrease in the price of steel