20. A rectangular yard is 20 feet by 15 feet. The yard is covered with grass except for an 8.5 -ft. square flower garden. How much grass is in the yard?

To find out how much grass is in the yard, we need to calculate the total area of the yard and then subtract the area of the flower garden. Given: - The yard is 20 feet by 15 feet. - The flower garden is an 8.5-ft square. 1. Calculate the total area of the yard: \[ \text{Total Area} = \text{Length} \times \text{Width} \] 2. Calculate the area of the flower garden: \[ \text{Area of Flower Garden} = \text{Side Length} \times \text{Side Length} \] 3. Subtract the area of the flower garden from the total area of the yard to find the area of the grass: \[ \text{Area of Grass} = \text{Total Area} - \text{Area of Flower Garden} \] Let's calculate the area of the grass. Calculate the value by following steps: - step0: Calculate: \(20\times 15-8.5\times 8.5\) - step1: Multiply the numbers: \(300-8.5\times 8.5\) - step2: Multiply the numbers: \(300-72.25\) - step3: Subtract the numbers: \(227.75\) The area of the grass in the yard is 227.75 square feet.