Molly opened a bank account. She deposited $86.50 into her account every month for 20 months. She used $24.50 every month to pay for singing lessons. After 20 months, she used of the total money left in her account to go to a summer camp for singers. What is the total amount of money Molly spent to go to the summer camp?
A.$310.00
B. $360.00
C.$420.00
D. $460.00