Finding the Area of a Square

What is the area of a square that has a side length of 2.8 inches?

[ ]square inches

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Ineed to know the answer right now! !