A swim club charges a one-time registration fee of $30 plus $18 per month to maintain the membership. What is the total charge for a membership for t years?
A. 18(t + 30)
B. t(12 x 18) + 30
C. t x 18 + 30
D. $126
A. 18(t + 30)
B. t(12 x 18) + 30
C. t x 18 + 30
D. $126