The expression 8x + 2(3y) represents the total amount, in dollars, that Davellyn spent on tank tops and scarves, where x represents the number of tank tops she bought and y represents the number of scarves she bought. Which statement must be true about the amount Davellyn spent?

Simplify the expression: 2(3y) = 6y, so the total amount is 8x + 6y dollars. The term 6y represents the amount spent on scarves, so the statement that she spent 6y dollars on scarves must be true. The other statements either assign the wrong amount to scarves or claim a fixed total that depends on x and y.

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