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Help me!!!!!!!!! having trouble its easy but not for me

Help me!!!!!!!!! having trouble its easy but not for me-example-1
User MCMatan
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2 Answers

1 vote

it is 30 which is d because 315-15 * 9 = 180/6 = 30

User Msfanboy
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5 votes

The answer is D 30 student tickets were sold.

User Nagibaba
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