Please help with these

If f(ac) = a2 - 2 and g(ac) = a + 4, find (f o g) (2) and (go f) (-2). a ) ( fog) ( 2) ( fog) ( 2) = b ) (go f ) ( - 2) (go f ) ( - 2 ) =\fUsing the table below, find an expression for g() by applying the correct scaling factor to f (ae) = ac2. f(x) = 12 g(x) =? -2 4 -1 1 0 0 0 19 4The function f (t) gives the total number of miles driven after t minutes during a road trip. Find f (50) using the table below. t (minutes) f(t) (miles) 30 20 50 40 60 50 70 70 f (50) =