The function c(x)=6+8x gives the cost in dollars to rent one bicycle for x hours. What is the meaning of c^-1(10) in this situation?
A. The cost of renting bicycles for 10 hrs
B. The cost of renting 10 bicycles
C. The number of hours you can rent a bicycle for $10
D. The number of bicycles you can rent for $10
Please help!!!