!30 Points! Use the substitution method to solve the system of equations.
y = 4x
8x + y = 18
A. (2,8)
B. (3/2,6)
C. (3/2,8)
D. (2,2)

The volume of a cube is 8 in to the 3rd power. how long is each side?

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?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?