Multiply out and simplify:
3(X-3) + 2(x-5)

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?