The side length of toms square garden was 72 ft. He used 1/2 of the garden for growing roses. What area of his garden was left?

2592 ft squared

Step-by-step explanation:

The area of Tom's square garden would be 72*72 which equals 5184.

He used half of the garden for roses so 5184/2 = 2592

5184-2592= 2592

He has 2592 ft squared of his garden left.

a. is correct