Write an expression for the total cost (in dollars) of a call lasting t𝑡 minutes.

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 35 minutes of calls is $15.10, and the remaining credit after 46 minutes of calls is $13.56. What is the remaining credit after 51 minutes of calls?CallingtimeinminutesRemainingcreditindollars$1

Write a program that calculates the bill for a cellular telephone company. The company offers two types of service: regular and premium. Its rates vary depending on the type of service. The rates are computed as follows:·         Regular Service: R100 + The first 50 mins are free + R2 per minute for mins over 50.·         Premium Service:  R250 +a.       For calls from 6:00 a.m. to 6:00 p.m., the first 75 minutes are free; charges for more than 75 minutes are R1 per minute.b.      For calls from 6:00 p.m. to 6:00 a.m., the first 100 minutes are free; charges for more than 100 minutes are R0.5 per minute.Your program should prompt the user to enter an account number, a service code, and the number of minutes the service was used. A service code of r or R means regular service; a service code of p or P means premium service. Treat any other character as an error.For the premium service, the customer may use the service during the day and the night. Therefore, to calculate the bill, you must ask the user to input the number of minutes the service was used during the day and the number of minutes the service was used during the night.  Your program should then generate an invoice by writing the account number, type of service, number of minutes the telephone service was used, and the amount due to a file called bill.txt.

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $26 monthly fee and charges an additional $0.13 for each minute of calls. The second plan has a $15 monthly fee and charges an additional $0.17 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

A phone company has a texting plan that charges a monthly rate based on the number of texts an individual sends per month.  This is modeled by the function cost of plan, 𝐶(𝑥),𝐶(𝑥), in dollars, is a function of the number of texts sent, 𝑥𝑥, per month.𝐶(𝑥)=⎧⎩⎨⎪⎪250.05𝑥+25.075𝑥+25 if 𝑥<100 if 100≤𝑥≤500 if 500<𝑥𝐶(𝑥)={25 if 𝑥<1000.05𝑥+25 if 100≤𝑥≤500.075𝑥+25 if 500<𝑥If you sent 500500 texts last month, what was the cost of your bill from the phone company? Question 2Answera.$37.50$37.50 b.$50.00$50.00c.$25.00$25.00d.$62.50

For his phone service, Jose pays a monthly fee of $11, and he pays an additional $0.07 per minute of use. The least he has been charged in a month is $110.96.What are the possible numbers of minutes he has used his phone in a month?Use m for the number of minutes, and solve your inequality for m.