Angie and Kenny play online video games. Angie buys 2 software packages and 2 months of game play Kenny buys 1 software package and 4 months of game play. Each software package costs $45. If their total cost is $237, what is the cost of one month of game play?

For the function, f(x) = -5x 2, find f(-4).

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.

Solve the system of equations. y= 2x y= x^2 - 15