Billy is paid 18¢ each time he cleans his room. He needs 45¢ for a snack. About how many times does he need to clean his room to be able to buy the snack?
A. about 9 times
B. about 7 times
C. about 3 times
+36916 c about 3 times 2 times 18 = 36 cents not enough to buy snack
3 times 18 =54 cents more than enough to buy snack
