Need this rnnn please help

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.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct