Mrs gardner is paving the sidewalk in front of her home with square tiles. the perimeter of each tile is 40 inches. which pair of equations can be used to find the area of each tile in square inches

The perimeter of SQUARE tile is 40 inches. Since the shape is a square and a square has 4 sides, 40 divided by 4 is 10. Each side is 10 inches. The area's formula is length times width, so 10×10=100.
The square tile is 100 inches squared.

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8