Math
posted by Mathdude on .
A room is 18 feet long, 14 feet wide , 8 feet high.
find the cost of painting the four walls with two coats of paint costing $9.50 per gallon. each gallon covers 256 ft squared want with 1 coat .

L x W x H
18 x 14 x 8
Room Perimeter
P = 2W + 2L
P = 2(14) + 2 (18)
P = 28 + 36
P = 64
Perimeter * Height
P = 64, H = 8
Area to paint = 64 * 8
A = 512 sq ft
512 sq ft/256 sq ft paint coverage = gal of paint needed
512/256 = 2 gals per coat
2 gals/coat * 2 coats = ? ttl gals needed
Gal. needed * 9.50 per/gal = Total Cost 
Need to calculate the amount of building and finishing materials that you must purchase for your room. Purchases must include:
Flooring
Wall covering/treatment
Baseboards, casing, trim
Ceiling lighting
In order to calculate these amounts, you must consider the following:
• Your room has the dimensions of 14 feet by 18 feet
• It has a door that measures 30 inches by 78 inches.
• There is one window with the dimension of 36 inches by 24 inches.
Use the following as an example for your coast calculations:
Flooring:
Area of the floor=
Amount of flooring required: _____________________
Choice of flooring: _____________________
Unit cost of flooring: ______________
Total flooring cost: __________________
Mush provide similar detailed cost calculation for the wall coverings/treatment, baseboard/casing/trim and ceiling lighting. 
idiot butt holes didn't even have the answer