Yosemite National Park charges $7 per person for an all day admission to the park. The total cost for n people to go to the park all day is given by the expression 7n. 8 friends go to the park on Saturday. What is the total cost of admission?
We want to evaluate f(n) = 7n for n = 8
f(8) = 7(8) = 56
We want to evaluate f(n) = 7n for n = 8
f(8) = 7(8) = 56