The answer is 25 I think sorry if it’s wrong :)
Answer:
im sorry but i only know the second one, i believe its 224.3
Step-by-step explanation:
Answer:
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Step-by-step explanation:
First term (a1) is -1
recursive formula goes like this

is the nth term

is the term before that
we normally have

we see each term is multipying by -3 to get next one
so that would be

where a1=-1
the 3rd option is correct except that it is the explicit formula
so answer is 2nd one