Solve the equation ^2^2 = + 2^2 by completing the square

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

Which number completes the inequality? 2/3 < _ < 7/9

Percent increase and decrease. original number: 45 new number: 18