What is the volume of a 90' x 20' x 12' house?

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.

Could someone with number 1 and 2

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29