Rob bought a tennis racket for $54.50 and some tennis balls for $9.99. He had a coupon for 30% off his total purchase. There was a 5.5% sales tax on his purchase. How much change did he receive if he handed the cashier $50? I'm sorry I suck at math

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Ineed to find the answer to number 2

Which of the following is a cost homeowners insurance does not protect? a. the cost of repair or replacement of a home lost in a natural disaster. b. additional living expenses required while your home is repaired after a disaster. c. replacement costs for all contents in your home, including high cost electronics. d. the cost of medical expenses incurred by somebody getting injured on your property. select the best answer from the choices provided