A monthly internet service costs for the first hours and per hour for each hour after the first hours. Amy can spend no more than per month on internet service fees.  

The inequality that will determine the correct value of  is

The correct graphical representation of the solution space of the system of linear inequalities

is

When buying their home, the Lee family takes out a year loan. Their monthly payments are . The interest rate is per year, compounded monthly. The amount of money that they borrowed is

If the functions

then is always equal to

The expression

can also be written as

A borrower is repaying a loan by making payments of at the end of one year,  at the end of two years and  at the end of three years. The interest rate on the loan is per year, compounded yearly. This is represented by the following time line:

The payment, to the nearest rand, which could be made at the end of the first year in order to discharge the loan, is

Thandi signs an agreement to pay fifteen months from now. The simple discount rate is per annum. The discounted amount she receives now equals

The following table gives the cumulative frequency of the marks out of that a group of students obtained for the QMI1500 examination:

The number of students who obtained more than but not more than is

Which ONE of the following has the same result as reducing an item in price using successive discounts of and ?

The number of days sick leave taken by the employees of a large company was recorded for the year 2013. The data are summarised in the following box-and-whiskers diagram:

Consider the period July to December 2013. The quartile deviation, rounded to two decimals, is