How can I solve questions 1

Name HW - Function notation Answer each of the following, showing all work needed. 1) Evaluate each of the following given the function definitions and input values. a) f(x ) = 3x + 7 b) g(x) = 3x2 c) h(x) = Vx- 5 f ( -4 ) = . 9 ( 2 ) =_ h(41) = h(14 ) = _ f ( 2 ) = _ 9(-3) =