Find the Nth Term and the Indicated Term of the Arithmetic

question 155

Multiple Choice

Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are
given.
- $$\begin{array} { l } \mathrm { a } = 9 ; \mathrm { d } = - 9 \\\mathrm { a } _ { \mathrm { n } } = ? ; \mathrm { a } _ { 13 } = ?\end{array}$$

• A) \(a _ { n } = 18 - 9 n ; a _ { 13 } = - 99\)
• B) \(a _ { n } = 18 - 9 n ; a _ { 13 } = - 54\)
• C) \(a _ { n } = 9 - 9 n ; a _ { 13 } = - 99\)
• D) \(a _ { n } = 18 + 9 n ; a _ { 13 } = - 99\)

---

Definitions:

Account

A record or statement of financial expenditure and receipts relating to a specific period or purpose.

Effective Rate

The actual interest rate an investor receives or pays after the effects of compounding interest and all charges are considered.

End-Of-Month Payments

Payments that are due at the end of each month, commonly found in loan and lease agreements.

Finance Company

A business that provides loans to individuals or other businesses and generates profit from the interest on these loans.