Question

1. a website subscription costs $15 monthly plus a one - time setup fee of $20. write the equation for the total cost c for n months.

a. $c = 20 - 15n$

b. $c = 15n + 20$

c. $c = 35n$

d. $c = 20n + 15$

Explanation:

Step1: Identify fixed and variable costs

Fixed cost = $20 (one-time setup), variable cost = $15 per month.

Step2: Form total cost equation

Total cost = variable cost + fixed cost → \( C = 15n + 20 \).

Answer:

b. \( C = 15n + 20 \)