Answer: her total commission is $573
Step-by-step explanation:
She earns 6% commission on her first $1,500 in sales. This means that the commission she earned on her first $1500 in sales is
6/100 × 1500
= $90
She earns 8$ commission on her next $2,000 in sales.
Last month, her total monthly sales were over $8,250. It means that her total sales over $8,250 is
8250 - 3500 = $4750
If she earns 10% commission on all sales over $3,500, it means that the amount of sales that she earned on $4750 is
10/100 × 4750 = $475
Therefore, her total commission is
90 + 8 + 475 = $573
