Problema Solution
The cost of plastering the walls of a rectangular room that is 18ft long, 14 ft wide, and 8 ft high is $2.56 per square foot. If 125 ft2 is not plastered because of doors and windows, find the cost to plaster the room.
Answer provided by our tutors
Two walls are 18 x 8 = 288 sq feet for both
Two walls are 14 x 8 = 224 for both
Total = 512
Minus 125 sq ft
= 387 plastered feet
x 2.56 = $990.72