选择题
2013 AMC 8 Problem 2: Fish Market Discount
A sign at the fish market says, "50% off, today only: half-pound packages for just $3 per package." What is the regular price for a full pound of fish, in dollars?
2013年AMC 8 第2题 ：鱼类市场折扣
鱼市的招牌上写着： “半价，仅限今天：半磅的包裹，每包只需$ 3。“一磅鱼的正常价格是多少，以美元计？
A.
6
B.
9
C.
10
D.
12
E.
15