单选题 Salesperson A's compensation for any week is $360 plus 6 percent of the portion of A's total sales above $1,000 for that week. Salesperson B's compensation for any week is 8 percent of B's total sales for that week. For what amount of total weekly sales would both salespeople earn the same compensation?

【正确答案】 C
【答案解析】[解析] 设周销售额为x美元时A和B两人的酬金相同,由题意可得:
360+(x-1000)×6%=x×8%
解此方程可得x=15000美元