Number 4 &5 please 4. Sherri and Deion both have square posters. Sherri’s poster has an area of 49 square inches. If Deion’s poster has an area that is 4 square inches less than Sherri’s poster, what are the side lengths of Sherri’s and Deion’s posters?

5. Francisco thinks the square root of a number is always smaller than or equal to the number itself. Which explanation shows Francisco is incorrect?