If 1/2 gallon of paint cover 1/4 of a wall then how much paint is needed to cover an entire wall?

paint is needed to cover an entire wall : 2  

if 1/2 gallon of paint cover 1/4 of a wall => 1 wall = (1/2)/(1/4) =2

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i