hi I need help with 9-11 i'm really confused on where to start, any assistance would be appreciated.

Part 2: Multiplier Practice- Use the graph to the right to answer the questions. Price Level SRAS 9. If an increase in consumer spending of $10 PL, LRAS billion would increase real GDP to $300 billion, what is the marginal propensity to consume? PL z 1 = 0.125 10. Assume the MPC was .8 instead. What is the least amount the government could spend to get the real GDP from $200 to $400 billion? PL , 11. Assume the MPC is .5 instead. What is the least PL , amount the government could cut taxes to get AD the real GDP from $200 to $400 billion? $100 $200 $300 $400 GDPR in billions 12. Why does SRAS eventual become vertical? Do not post online