If f(x) = 21 + 3sqrt(x+12) and g(x) = 2x^2+ 5, compute the composition (f ∘ g)(4).

(f ∘ g)(4) =

sqrt= square root of what’s in ( )

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Ineed to know how to write question one in mathematical terms