Q6: Sue’s monthly earnings consist of a monthly salary and a 4 percent commission on the portion of her monthly sales that is in excess of $2,000. If Sue’s monthly salary was the same in July as in August, how much greater were her sales in July than in August? (1) Sue’s monthly earnings were $3,620 in July and $3,580 in August. (2) Sue’s monthly salary was $3,500 in July and in August. answer:a 请大牛们看看~~~
