Find the Number of Terms of the Finite Arithmetic Sequence $12,21,30,39 , \ldots , 525$

question 138

Multiple Choice

Find the number of terms of the finite arithmetic sequence.
- $12,21,30,39 , \ldots , 525$

• A) 58
• B) 59
• C) 60
• D) 57

---

Definitions:

Total Profit

The net income a business earns after subtracting all costs, expenses, and taxes from the total revenue.

Per Unit Profit

The profit earned from selling one unit of a product, calculated by subtracting the cost per unit from the selling price per unit.

MR = MC Rule

A principle in economics where the optimal level of output is reached when marginal revenue equals marginal cost.

Price Taker

An individual or company that must accept prevailing prices in the market of its products or services, lacking the market power to influence prices on its own.