Suppose that this year's money supply is Rs 5000 billion, nominal GDP is Rs100 trillion, and real GDP is RS 7 trillion. a. What is the price level? What is the velocity of money? b. Suppose that velocity is constant and the economy's output of goods and services rises by 5 percent each year. What will happen to nominal GDP and the price level next year if the SBP keeps the money supply constant? c. What money supply should the SBP set next year if it wants to keep the price level stable? d. What money supply should the SBP set next year if it wants inflation of 10 percent?