Which equation has the following characteristics?

y varies directly with x

y=30 when x = 3

A. y=27+x

B. y=10x

C. y=33-x

D. 30x

I think it's B

82 rounded to the nearest ten is

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3x 2 + 2x - 5 and - 4 + 7x 2 -x2 + 9x - 9 21x2 + 2x + 20 10x2 - 5x - 1 10x2 + 2x - 9

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