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: 30 dogs are barking . 10 more dogs start to bark . How many dogs are barking ?

Answer: 40


Question: Shirley starts with 98 eggs . She buys 8 more . How many eggs does Shirley end with ?

Answer: 106


Question: Jessica spent $ 10.22 on a cat toy , and a cage cost her $ 11.73 . What was the total cost of Jessica 's purchases ?

Answer:
21.95