Tom is planning to paint his room. The room is in the shape of a rectangular prism, measuring 12 feet in length, 10 feet in width, and 8 feet in height. He wants to paint only the walls and the ceiling, while leaving the floor unpainted.
To calculate the total area that needs to be painted, Tom needs to find the area of the four walls and the ceiling. The area of a rectangular wall can be found using the formula: Area = Length × Height for the long walls and Area = Width × Height for the short walls. The area of the ceiling can be calculated using the formula: Area = Length × Width.
If Tom buys paint that covers 150 square feet per gallon, how many gallons does he need to purchase to cover the total area that he wants to paint?