Prove (p ^q) = (pvq) is a tautology​

Answer these questions showing your work plz

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.

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?