If f(x) = 21 + 3 sqrt(x+12) and g(x) = 2x2 + 5, compute the composition (f ∘ g)(4).

(f ∘ g)(4) =

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.