Answer :
To calculate the cost to weatherstrip four windows and two doors, determine the total length of weatherstripping needed by adding the lengths of the sides to be covered, and multiply by the cost per foot, resulting in a total cost of $53.10.
The cost to weatherstrip four windows measuring 18 inches by 20 inches and all sides except the bottom of two doors that are 48 inches wide and 97 inches high can be determined by calculating the total length of weatherstripping required and then multiplying it by the cost per foot. First, convert the measurements of the windows and doors to feet. Each window requires weatherstripping for three sides (since the bottom is not included), so two sides of 1.5 feet (18 inches) and one side of 1.67 feet (20 inches). The two doors require weatherstripping for three sides as well, with two sides of 8.08 feet (97 inches) and one side of 4 feet (48 inches).
Calculate the total length of weatherstripping needed for the windows: 4 windows x (2 sides x 1.5 feet + 1 side x 1.67 feet) = 4 x (3 + 1.67) = 4 x 4.67 = 18.68 feet. And for the doors: 2 doors x (2 sides x 8.08 feet + 1 side x 4 feet) = 2 x (16.16 + 4) = 2 x 20.16 = 40.32 feet.
Add the lengths together: 18.68 feet (windows) + 40.32 feet (doors) = 59 feet of weatherstripping needed.
Finally, calculate the cost: 59 feet x $0.90/foot = $53.10. Therefore, the total cost to weatherstrip the necessary areas would be $53.10.A
