4. Phone companies itemize charges on monthly bills. There are several fees, call surcharges, and taxes. There could be charges for mainte- nance 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 com- pany. 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. P2.8 b. Find the total, b, that must be paid for this billing periods 85 c. What was the percent increase of the total bill when compared to the basic service cost? Round to the nearest TELL-ALL PHONE COMPANY percent. Basic Services ............ $39.99 d. If the basic service Additional charges cost is b dollars, and FCC Line charge ....... $6.42 Federal surcharge ...... 0.73 the extra charges are 9-11 Surcharge......... 0.35 Federal tax............. 0.17 e dollars, represent State and Local tax ..... 0.64 the extra charges Wire Maintenance Option 4.55 as a percent of the Total Additional charges) ........ S a basic cost algebraically. Billing Period (May 30 - Jun 30). Total charges ..... $ b