Grace started her own landscaping business. She charges $6 an hour for mowing lawns, $11 for pulling weeds and $9 for putting down mulch. In September she mowed lawns for 63 hours, pulled weeds for 9 hours and put down mulch for 10 hours. How much money did she earn in September?
Let's be accurate as possible and think first.
567
Grace mowed lawns for 63 hours at $6 / hour, so earned 63 * 6 = $378.

Grace pulled weeds for 9 hours at $11 / hour, so earned 9 * 11 = $99.

Grace put down mulch for 10 hours at $9 / hour, so earned 10 * 9 = $90.

During September Grace earned $378 + $99 + $90 = $567.

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So, the final answer is 567