Final answer:
Dale's restaurant ceiling area is 1521 square feet. Each can covers 169 square feet, so he will need approximately 9 cans of paint, which is not an option provided in the multiple-choice answers.
Step-by-step explanation:
Dale needs to calculate how many cans of paint are required to cover the ceiling of his restaurant. The ceiling is a square with side lengths of 39 feet. To find the area of the ceiling, we square the length of one side:
Area = Side × Side = 39 feet × 39 feet = 1521 square feet.
Since each can of paint covers 169 square feet, we divide the total area by the coverage of one can to determine the number of cans needed:
Number of cans = Total area ÷ Coverage per can = 1521 sq ft ÷ 169 sq ft/can ≈ 9 cans.
Since Dale cannot purchase a fraction of a can, he will need to buy 9 full cans of paint. The correct answer is not provided in options a, b, c, or d, as all of them are less than 9 cans.