After spending $2150 for tables and $4050 for chairs, a convention center manager finds that the total is 9% more than he spent on tables and chairs last year. To the nearest dollar, find the amount that he spent last year.

The manager spent $2,150 + $4,050 = $6,200 this year. Since that is 9% more than last year’s spending, $6,200 is 109% of last year’s amount; divide $6,200 by 1.09 to get about $5,688. The correct choice is $5,688.

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