Answer:
Area of his yard = 19680ft²
Fertilizer needed = 590.4 ounces
Explanation:
Step 1 Find the area of his lawn
The question states that his lawn is a rectangle that measures 240 feet by 82 feet
To find the area of a rectangle we simply multiply the side lengths
Hence, area of his yard = 240 * 82 = 19680ft²
Step 2 find amount of fertilizer needed.
The question states that .03 ounces is used per square foot.
So to find the amount of fertilizer needed simply multiply total area by amount used per square foot.
19680 * .03 = 590.4
So we can conclude that John will need 590.4 ounces of fertilizer