第13题: [单项选择]A car dealer who gives a customer a 20 percent discount on the list price of a car still realizes a net profit of 25 percent of cost. If the dealer’s cost is $4800, what is the usual list price of the car ?() A. $6000 B. $6180 C. $7200 D. $7500 E. $8001 参考答案:D