Explanation
On Monday, the bank account balance was -$12.58
A. Â As you wrote a $30.72 check, so the new balance in your checking account will be: [tex](-12.58+30.72)dollar =18.14[/tex] dollar
B. Â The bank charges a $25 fee for paying a check on a negative balance. So, the balance in your checking account after this fee [tex]=(18.14-25)dollar= -6.86[/tex] dollar
C. Â For bringing your account balance back up to $0 after the fee, the money need to deposit [tex]=[0-(-6.86)]dollar =6.86[/tex] dollar.