Consider the following table: AGGREG INCOME AGGREG CONSUMPTION 0 120 60 150 100 170 150 195 200 220 a. Compute the MPC and the MPS and write the consumption and saving functions b. Use the consumption function to project the level of consumption and spending for a Level of aggregate income Y=300 c. Given the level of Planned investment of I, write the formulas for Aggregate Expenditures and the Multiplier d. Use the results of question a. to compute the increase in Y resulting from an increase in planned investment by 50