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Question:

Staci earns $9.50 an hour plus 3% commission on all sales made. If her total sales during a 30-hour work week were $500, how much did she earn?

A $300
Explaination

For a 30-hour week with $500 in sales, total earnings are (30 × $9.50) + (3% × $500) =$285 + $15 = $300.