Asequence is defined by the recursive formula f (n + 1) = f(n) – 2. if f(1) = 18, what is f(5)?

Answer this question only if you know the 30 points and

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.