You are given a math word problem and you are supposed to apply multiplication or division 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: A pet store has 8 bird cages . If each cage has 2 parrots and 7 parakeets in it , how many birds does the pet store have total ?

Answer: 72


Question: Roger earned 9 dollars for each lawn he mowed . If he had 14 lawns to mow , but forgot to mow 8 of them , how much money did he actually earn ?

Answer: 54


Question: An MP3 player costs 40 dollars . The sales tax is 2.4 dollars . What is the percent of sales tax ?

Answer:
6