Choose the method of pay that would result in the most earnings for one month on sales of $73,620.

For $73,620 in sales, choice B pays a $3,000 salary plus 2% of sales: $3,000 + ($73,620 × 0.02) = $4,472.40. The other methods pay $4,417.20, $4,125.80, and $4,453.40, respectively, so the monthly salary plus 2% commission gives the most earnings.

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