Very confused on this

"Round to 2 decimal places* If there are no excess reserves, what is the Required Reserve Ratio (RR)? % Based on the RR, what is the deposit multiplier? The multiolier can be interpreted to mean a \$1 increase in deposits will lead to a $ change in the M1 money supply. Based on the deposit multiplier, what will the change in the M1 money supply be? \$ What is the increase in the M1 money supply if Deposits represents the initial deposit? \$