The bank gave jennifer $20 to start a savings account. Each month Jennifer added the same amount, $13. Which expression shows how much money Jennifer has after (m) number of months?
A. 20m
B. 20m+13
C. 20+13M
D. 13m*20
A. 20m
B. 20m+13
C. 20+13M
D. 13m*20