Question

1. a linear equation for a cellphone service that includes a monthly base fee of $40 plus $0.20 per minute of calls is: a. $c = 40m + 0.20$ b. $c = 20m + 40$ c. $c = 40m + 20$ d. $c = 0.20m + 40$

Explanation:

Step1: Identify fixed and variable costs

Fixed cost = $40 (base fee), variable cost = $0.20 per minute (\( m \))

Step2: Form total cost equation

Total cost \( C = \text{variable cost} + \text{fixed cost} = 0.20m + 40 \)

Answer:

d. \( C = 0.20m + 40 \)