find the solution to the system of equations. select all that apply.
y = x^2 - 2x - 3
y = 2x - 3
a. (3,0)
b. (-1,0)
c. (4,5)
d. (0,-3)

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.