Use the bar up top and then graph the ordered pairs on the coordinate plane. and then you figure out if it could be a straight line then you figure out why is it a straight line or why it’s not!

the answer is 62.8 cubic units

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

c

step-by-step explanation: easy math