need help with these math questions

Question 1

Q1. Using the general term a_n = 5n - 14, what is a₈₅ ?

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Question 2

Q2. Using the general term a_n = n² - 14n, what is the 17^th term?

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Question 3

Q4. What is a₃₀ for the arithmetic sequence with a₁ = 19 andd = 3?

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Question 4

Q6. What is a₁₂ for the geometric sequence with a₁ = 8 and r = 4?

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Question 5

Q8. Supposeg₁ = 3 and g₂ = 4. The rest of the terms in a recursive sequence are given by the formula g_n = ng_n-1+ g_n-2.

Find the 7^th term of the sequence, g₇.

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