plz explain,thx!

Suppose the Canadian economy has only two commercial banks: Bank A and Bank B. The following table shows their current balance sheets in dollars. The money supply in period 1 Bank A Bank B Assets Liabilities Assets Liabilities Deposits 1,164.68 947.49 Loans 676.68 550.49 Reserve 488 397 a. Suppose that individuals hold 101 dollars in cash. What is the money supply in the economy? Express your answer in dollars rounded to the nearest second decimal. b. Suppose that the banks cannot make additional loans because they would exceed their desire reserve ratio (both banks have he same reserve ratio). What is the reserve ratio? Express your answer in percentage rounded to the nearest first decimal