Just need help with C please

Return to question 7 In each of the following cases, calculate the values of MPC, MPW, and the spending multiplier. Enter your responses below rounded to 2 decimal places. 9 a. A $4 million increase in income leads to a $1,000,000 rise in consumption on points domestic items. MPC is therefore 0.25 , MPW is 0.75 and the spending multiplier is 1.33 b. A $4 million decrease in income results in a $1 million drop in consumption on domestic items. MPC is therefore 0.25 , MPW is 0.75 and the spending multiplier is 1.33 c. A $2 million decrease in income causes a $1.2 million drop in withdrawals. MPC is therefore 0.6 x , MPW is 0.4 and the spending multiplier is 2.5