Answer:
17
Step-by-step explanation:
call the other kinds of pets x
40+18+x=100*3/4
This is the answer to your question
sum means addition, so just add the three numbers...
12.6 +3.1 = 15.7 + 5.4 =21.1
21.1 is greater than 20
Go here im sorry if this dosent help
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