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.
--------
Question: carol was sending out birthday invitations to her friends . if each package of invitations she bought had 9 invitations in it and she bought 5 packs how many friends can she invite ?

Answer: 45


Question: the book fair had a sale where 3 books were $ 18.72 . if you wanted to buy 6 books how much money would you need ?

Answer: 37.44


Question: the razorback t-shirt shop makes $ 9 dollars off each t-shirt sold . during the arkansas and texas tech game they sold 245 t-shirts . how much money did they make from selling the t-shirts ?

Answer:
2205