11. PARKS The Hillsborough State Park in Thonotosassa, Florida, charges an admission fee of $4 plus a camping fee
of $20 per night. This can be represented by the function f(x)=20x +4, where f(x) is the total cost and x is the
number of nights spent camping. What is the value of f(5), which is the cost of 5 nights camping?
A. 80
B. 100
C. 104
D. 120