Need help with this will give branliest to the first who answers

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.

Evaluate the expression. (9 + 5)(3 + 2)0

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.