For #45 I got -2xy+4y would that be choice b? Help please!

6y-2y(x+1)
6y-2xy-2y
Combine like terms
4y-2xy which is as the same as -2xy+4y, which means that it is choice B and you are correct
45) To solve, Distribute -2y to both x and 1
-2y(x) = -2yx
-2y(1) = -2y
6y - 2y - 2yx
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Simplify the expression. Combine like terms
(6y - 2y) - 2yx
4y - 2yx
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4y - 2yx, or (B), is your answer
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hope this helps