Two less than the product of 4 and a number equals 7

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.

In which form is the following function written? y = - 2(x – 3)(x + 5)

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2