Vinyl wallpaper is needed to cover 4 walls of a room. each wall measures 12 feet by 8 feet and each bolt of wallpaper covers 72 square feet. deduct 52 square feet for windows and the door. if the wallpaper costs $13.90 per bolt, how much will the paper cost?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.