Fax

A store that offers faxing services charges, a fixed amount to fax one page and a different amount for faxing each additional page. If the cost of faxing 5 pages is $3.05 and the cost of faxing 13 pages is $6.65. a. What is the cost of faxing one page? b. What is the total cost of faxing three pages to the same telephone number?