Respuesta :

they will need more but why dont they just keep their money?
6th graders make $9 per car. $9 times 50 cars5th graders make $8.50 per car. $8.50 times cars
6th graders earn $450 after washing 50 cars.5th graders earn $425 after washing 50 cars
$450-$425=$25
The 6th graders make $25 more than the 5th graders.

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