Phone companies itemize charges on monthly bills. There are several fees, call surcharges, and taxes. There could be charges for maintenance of the phone wiring within the home. These charges inflate the bill because they are not included in the advertised basic service rate. Be sure to inquire about all extra fees when choosing a phone company. A bill from the Tell-All Phone Company is shown.

a. Find the total amount, a, that must be paid for just the extra charges shown on the bill.
b. Find the total, b, that must be paid for this billing period.
c. What was the percent increase of the total bill when compared to the basic service cost?
If the basic service cost is b dollars, and the extra charges are e dollars, represent the extra charges as a percent of the basic cost algebraically.

Transcribed Image Text:

TELL-ALL PHONE COMPANY Additional charges FCC Line charge$6.42 Federal surcharge... 0.73 9-11 Surcharge . 0.35 State and Local tax.... 0.64 Wire Maintenance Option 4.55 Total (Additional charges) Billing Period (May 30- Jun 30) Total charges $ b