Please help!

Solve for y

3x - 7y + 12 = 5x - 9

Which rational number could be graphed between -4 and -5

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

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.