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.

Input: Consider Input: Zoe baked 5 brownies , but needed 11 total for her party . If she used 7 cups of flour on each one , how much cups of flour does she still need ?

Output: 42

Input: Consider Input: How many yards of material from a 24 yard length of cloth remains after 3 pieces each 3.5 yards long and 5 pieces each 2.25 long are removed ?

Output: 2.25

Input: Consider Input: If Bob can make 100 feet of rope in 2 hours and Tim can make 75 feet of rope in 2 hours , how many feet of rope can Bob and Tim working together make in 4 hours ?
Output: 350