Which is equal to g^2 + 3g + 2.25?
(g + 15)^2
g + 1.5
(g + 1.5)^2
(g − 1.5)^2

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step-by-step explanation:

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

the height of the surface increases from the center out to the sides of the road

it is c!