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Joe received an hourly wage of $8.15. His boss gave him a 7% raise. How much does Joe make per hour now?

A $8.72

To calculate the new wage, start off by multiplying $8.15 × 0.07 = $0.57. Then add that number (the amount of Joe’s raise) to his original hourly wage. Joe’s new hourly wage is $8.15 + $0.57 = $8.72.