Using the aggregate expenditures table below, answer the questions that follow.

a. Compute the APC when income equals $2,300 and the APS when income equals $2,800.
b. Compute the MPC and MPS.
c. What does the simple Keynesian multiplier equal?
d. If investment spending is equal to $120, what will be equilibrium income?
e. Using the graph below, show saving, investment, and equilibrium income.

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Income (Y), in $ 2,200 2,300 2,400 2,500 2,600 2,700 2,800 2,900 3,000 Consumption (C), in S 2,320 2,380 2,440 2,500 2,560 2,620 2,680 2,740 2,800 Saving (S), in $ -120 -80 -40 40 80 120 160 200