Question 4: Firms increase investment spending by $3.5 million What is the MPC, MP8 and multiplier? 3.5 Mulion 130 165 Question 5: MPS=0.2 what would be the increase in AB that would raise equilibrium GDP as shown in the diagram? A.E. 45 Question 6: Show the effect on the diagram of an introduction of government spending 45\" (+1 Aggregate Expenditures rl'l cop" GDP