Mathematics, 05.05.2020 05:07 ciel8809

Crown molding is a decorative trim installed over the joint between the walls of a room and the ceiling. (If you are not sure that you understand the idea, do an Internet search to find an example picture of crown molding). Andy intends to install crown molding around the four sides of the dining room. There will be no gaps. The dining room ceiling is a rectangle with dimensions 14 feet 9 inches by 13 feet. The crown molding is sold in 8-foot lengths that cost $24 each. He decides to purchase enough pieces to allow for 10% waste due to possible mistakes.
1. What is the perimeter of the dining room in feet and inches?
2. How many 8-foot boards are needed?
3. If sales tax is 8.25%, what is the total cost?

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