You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: shelby had 92 pieces of candy . she gave 4 pieces each to 9 friends . how many pieces of candy does shelby have left ?
[EX A]: 56

[EX Q]: wendy earned 5 points for each bag of cans she recycled . if she had 11 bags but did n't recycle 2 of them how many points would she have earned ?
[EX A]: 45

[EX Q]: a florist had 50 roses . if she sold 15 of them and then later picked 21 more how many roses would she have ?
[EX A]:
56