a window is shaped like a semicircle. the base of the window has a diameter of 3 1/2 ft. find the area of the window to the nearest tenth of a foot. explain how you found the answer.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 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 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.