Math, asked by yarrrrr, 1 year ago

5 point question solve all step-step plzz

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Answered by Nishu2711

17.Prime numbers are those numbers which have only 2 factors i.e. 1 and the number itself.
Composite numbers are those numbers which have more than 2 factors.
18. 18*(-27)*30=(-486)*30=-14580
20. -639/79=-9
21. B is the vertex.

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