Can someone hel poll with this math 6+ homework

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) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?