Jennifer used 0.42 gallons of paint to completely cover a square wall with an area of 168 square feet. Which measurement is closest to the side length of this wall in feet?

The answer to this question is: 12.96 ft ≈ 13 ft

Step-by-step explanation:

Data

Area 168 ft²

Length = ?

Volumen = 0.42 gallons

But we do not need the volume of paint because we know that the wall is squared-shape.

Only we need to know the formula to obtain the area of an square.

Formula area = length²

So 168 = length²

Finally √168 = length

length = 12.96 ≈ 13 ft