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.

Isabel baked 39 cupcakes for her school 's bake sale . If her brother , Todd , ate 21 of them how many packages could she make if she put 3 cupcake in each package ?
6

Last Saturday , Spencer walked all over town running errands . First , he walked 0.3 mile from his house to the library and 0.1 mile from the library to the post office . Then he walked 0.4 mile from the post office back home . How many miles did Spencer walk in all ?
0.8

Robin was making baggies of cookies with 6 cookies in each bag . If she had 23 chocolate chip cookies and 25 oatmeal cookies , how many baggies could she make ?

8