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the length of a rectangle is twice its width, the area is 72sq inches,find its dimensions(find length and width)

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  1. by inspection, 6x12

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  2. a basketball team sells tickets that cost $10, $20, or vip seats, $30. the team has sold 492 tickets overall. it has sold 156 more $20 tickets than $10 tickets. the total sales are $8520. How many tickets of each kind have been sold?

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