Question

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Answer 1

options:


an=5-2(n-1); all integers where n is greater than or equal to 1
an=5-2(n-1); all integers where n is greater than or equal to 0
an=5-3(n-1); all integers where n is greater than or equal to 1
an=5-3(n-1); all integers where n is greater than or equal to 0

Answer 2

The difference is a2-a1, or 2-5, which is -3

You can exclude B and D, because there is no such a thing as zeroth term.

And -2 is not the difference, so exclude A

Answer 3

` ( • ‿ • ) `

Answer 4

Anytime !