1.      
Kim has two telephones.  One is cellular and the other is a
landline.  The rates for local calls are
shown in the table below.
Rates                                           Cellular                                Landline
Monthly Rental Fee                        $0                           $45
Charges per minute                        85 cents               15
cents
Question 1 – In one month, calls were made
lasting for a total of 1 hour and 5 minutes. 
Show by calculations, that the cost for using the landline telephone was
less than the cost for using the cellular telephone.
Question 2 – For the month of March, the
landline telephone was used, and the bill was $54.60.  Calculate the total time, in minutes, for
which the calls lasted.   (Total 11
marks)
"read more" for answers