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.

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 .
11

Tom found 15 seashells and Fred found 43 seashells on the beach . When they cleaned them , they discovered that 29 were cracked . How many seashells did they find together ?
58

David removes 7 eggs from a jar . There were originally 27 eggs in the jar . How many eggs are left in the jar ?

20