A Telecommunication Company has two services the tango and the contract. The

contract has fixed charge of N$ 110 per month plus N$ 1.15 per minute of talking time. The Tango charge N$ 1.95 per minute.

2

What are the total monthly charges for each service for talking time of 1¹ hours? (3)

2. After how many minutes of talking time will the two services cost the same? (3)
3. If you spend N$ 900 per month on tango cards, how much would you save having the contract service? (3)