Taylor wants to paint his rectangle deck that is 42 feet long and 28 feet wide. a gallon of paint covers about 350 square feet . how many gallons of paint will taylor need to cover the entire deck?

First we need to figure out the area of Taylor's deck.

Area of a rectangle = length * width

Area = 42 * 28

Area = 1176 square feet

A gallon of paint covers about 350 square feet.  So, to find out how many gallons of paint Taylor needs, we have to divide the total area of his deck by the amount of deck that one gallon covers.

Gallons = 1176 / 350

Gallons = 3.36

However, Taylor cannot buy a fraction of a gallon of paint, and he can't leave some of his deck unpainted. 

Therefore, Taylor needs 4 gallons of point to cover the entire deck.

Horizontal change or the change of x