Write a Formula for the General Term (The Nth Term)of $r a _ { n }$

question 47

Multiple Choice

Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for $r a _ { n }$ to find $a _ { 20 }$ , the 20th term of the sequence.
- $30,25,20,15 , \ldots$

• A) \(a _ { n } = 35 - 5 n ; a _ { 20 } = - 65\)
• B) \(a _ { n } = 30 - 5 n ; a _ { 20 } = - 70\)
• C) \(a _ { n } = 5 n - 35 ; a _ { 20 } = 65\)
• D) \(a _ { n } = 5 n - 30 ; a _ { 20 } = 70\)

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Definitions:

Contribution Margin

The difference between a product's price and the variable costs associated with its production, indicating how much contributes to covering fixed costs and generating profit.

Cash Break-even

The point at which a business generates just enough revenue to cover its operating cash expenses, without generating profit.

Fixed Costs

Fixed costs are expenses that do not change with the level of production or sales, such as rent, salaries, and insurance premiums.

Output Produced

The total amount of goods and services produced by an entity during a specific period.