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3 votes
Can someone help me solve question 19

Can someone help me solve question 19-example-1
User Brousch
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2 Answers

6 votes
The answer to this is negative 6
User Mahesh Giri
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2 votes
answer C: -6

15 - 21 = -6

drop of 21 = -21 and that’s how i get -6 as the final answer!
User Cameel
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