You are given a math word problem and you are supposed to apply a single mathematical operator 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.

[Q]: mrs. hilt is baking bread . she needs 5 cups of flour to bake 2 loaves of bread . how much flour will she need to make 1 loaf of bread ?
[A]: 2.5

[Q]: the litter patrol picked up 10 glass bottles and 8 aluminum cans on saturday . how many pieces of litter did they pick up altogether ?
[A]: 18

[Q]: harry hound had a terrible earache yesterday . when i peered into his ears yesterday i found 36 frisky fleas having a party in his right ear and 85 baby fleas sleeping peacefully in his left ear . i cleaned out harry hound 's ears . how many fleas perished ?
[A]:
121