The stretch of a spring varies directly as the weight attached to the spring. If a weight of 20 grams stretches a spring 5cm what weight would stretch the spring 8 cm?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

no

explanation:

you can be freinds, and people but not follow people.

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step-by-step explanation:

this is a parabola.