Refer to this sketch of a warehouse answer and you

2) 12,000 ft²

3) 30 gallons.

Step-by-step explanation:

2) 1. You can calculate the lateral surface area of the exterior walls of the warehouse by applying the formula shown below:

Where h is the height, l is the lenght and w is the width.

2. Substitute values and you obtain that the lateral area is:

3) You know that 1 gallon of paint covers 400 ft², therefore for 12,000 ft² are needed the following number of gallons (which is represented by x):

for the points! : )