What is the surface area of the box formed by the net above?
A. 162cm^2
B. 244cm^2
C. 2640cm^2
D. 3040cm^2

english, cause i can’t you

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

step-by-step explanation:

where is the question is there is a formula or is there not one