Answer:
1
Step-by-step explanation:
The cost (c) is the total amount of the cell phone plan. The $0.07 serves as the cost per hour which means that it would vary with time. This would suggest that the 0.07 would need a variable(h) that would stand as the number of hour. The flat monthly fee suggest that it would only be paid once. This fee would be an additional amount of payment that would add up to the total cost(c) when added with 0.07h.
