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.
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Question: There are 54 scissors in the drawer . Keith placed 22 more scissors in the drawer . How many scissors are now there in all ?

Answer: 76


Question: Mary has 9 yellow marbles Joan has 3 yellow marbles . How many yellow marbles do they have in all ?

Answer: 12


Question: Jason joined his school 's band . He bought a flute for $ 142.46 , a music stand for $ 8.89 , and a song book for $ 7 . How much did Jason spend at the music store ?

Answer:
158.35