instruction:
You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
question:
Elizabeth went to the salon and had 0.375 inch of hair cut off . The next day she went back and asked for another 0.5 inch to be cut off . How much hair did she have cut off in all ?
answer:
0.875


question:
A textbook costs a bookstore 44 dollars , and the store sells it for 55 dollars . Find the amount of profit based on the selling price .
answer:
11


question:
At the fair there were 7 people in line for the bumper cars . If 4 of them got tired of waiting and left and 8 more got in line , how many people would be in line ?
answer:

11