12. (Simple Spending Multiplier) For each of the following values for the MPC, determine the size of the simple spending multiplier and the total

12. (Simple Spending Multiplier) For each of the following values for the MPC, determine the size of the simple spending multiplier and the total change in real GDP demanded following a $10 billion decrease in spending:a. MPC = 0.9b. MPC = 0.8