HURRY PLEASE I NEED HELP A system of equations is given below.
y= - 3/4x - 3
y= 3/4x + b
What value of b would cause this system to have an infinite number of solutions?

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+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.

X+y=-4 x-y=2 use elimination with adding and subtraction