Can you simplify 21/32 and if you can what’s the answer

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.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

What is the answer to the question 5x+2x