A pool will be installed in a backyard. The backyard measures 40.5 feet long and 25 feet wide. The installation of the pool will decrease the area of the yard by a scale of 3. What is the reduced area, in square feet, of the yard?

13.4
112.5
281.3
2,194

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Find two consexutive odd integers such that the sum of their square is 650

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?