Lily S.

asked • 03/21/23

Need Help Please

A firm has offered Bondi residents a promotion to install a National Security Service.


(The AD:)

0$/month

For the first 2 months

then $80/month

*Installation Fee: $99 ONLY


(Back to question)


a. Find the average monthly fee as a function of the number of months of service.


b. Find the average monthly fee if somebody decides to use the service for 2 years.


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