The swimming pool is open when the high temperature is higher than 2 0 ∘ c 20 ∘ c20, degrees, start text, c, end text. lainey tried to swim on monday and thursday (which was 3 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 3 0 ∘ c 30 ∘ c30, degrees, start text, c, end text on monday, but decreased at a constant rate in the next 3 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d dd, from monday to thursday.