Acity is building a fence around a rectangular playground. if the perimeter of the playground is 90 feet and the length of one side of the fence is 28 feet, what is the width of the playground?

Factor this polynomial completely x^2-64

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

What is perpendicular to y=-1/2x+11