Cindy's grandfather opened a savings account for her when she was bom. He
deposited one lump sum of money and never touched the account again. The
account had a 4% fixed simple interest rate. Cindy closed the account when
she tumed 18. At that time, the account had eamed $72 in interest. How much
did her grandfather originally deposit? (Use/prt)
O
A $100
B. $72.
C. $51.84
D. $40