13. which expression is the simplest form of (a^1/3b^-1/4)^-12?

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

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