kindly answer all if possible

Question number 1: #. If a bank has undesired excess reserves of $300, and if rr=20%, e=15% and c=20%, what is the value of the money multiplier? [Provide to two decimal places.] #. If a bank has deposits of $4,000 and reserves of $1000 and if rr=25%, e=15% and c=10%, then what is the bank's level of undesired excess reserves? Be clear about whether this is positive or negative. #. If a bank has undesired excess reserves of $250, and if rr=15%, e=15% and c=10%, then to restore equilibrium by how much will the money supply (M1) change? Be clear about whether this is a positive or negative change. #. If a bank has undesired excess reserves of -$450 and where e=15%, c=20%, and m*=4.8, to restore equilibrium by how much will the money supply (M1) change? Be clear about whether this is a positive or negative change