Express the rule in function notation. (for example, the rule "square, then subtract 5" is expressed as the function f(x) = x2 − 5.) add 5, then multiply by 3

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

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.

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing