Question

a rectangular yard is 20ft by 15ft. the yard is covered with grass except for an 8.5ft square flower garden. how much grass is in the yard?

answer: 227.75i dont get how they got that answer

Answer 1

This is what you're given. To find how much grass there is, you find the area of the rectangular yard and the area of the flower garden.

Area = length *width
A = 20*15

What is 20*15, @kelewood?

Next, you find the area of the square.

Area = side^2
A = 8.5^2

What is 8.5^2?

Once you've found those numbers, subtract the area of the flower garden from the rectangular yard.