Answer:
Step-by-step explanation:
I'm sorry forgot how to exactly solve it
Idk but it can't be 10 or 9.7 bc a triangle's hypotenuse is always longer than its legs
The explicit formula of the arithmetic sequence:

d - common difference
We have the recursive formula of an arithmetic sequence:

Therefore we have:

Substitute:

<h3>Answer: aₙ = 7 - 3n</h3>