I've been working on the same problem for an hour and can't figure it out.
. A van rental company rents out 6, 8, 12, and 16 passenger vans. The function C(x)=11+5x represents the cost C(in dollars) of renting an x-passenger van for the day. Which of the following numbers is in the range of the function?
A.6 B.100 C.130 D.150