GESP 1-4级 -- GESP 5-8级 -- CSP-J/S --

A35427. $Mary has three dolls, and she wants to buy each doll a hat. The hats cost 3$

单选题较难

知识点

乘法运算应用题

题目描述

Mary has three dolls, and she wants to buy each doll a hat. The hats cost 3$ each, how much money should Mary prepare? ( )

选项（单选）

A

3$

B

9$

C

6$

D

12$

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