SupposeWorldwide-Link offers an international calling plan that charges $10.00 per month plus $0.30 per minute for calls outside the United States.

Requirements

R1. Under this plan, what is your monthly international long-distance cost if you call Europe for

a. 20 minutes?

b. 50 minutes?

c. 95 minutes?

R2. Draw a graph illustrating your total cost under this plan. Label the axes, and show your costs at 20, 50, and 95 minutes.