Help plz find the value of M and N

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.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

According to the data set, where should the upper quartile line of the box plot be placed?