Nontobeko works for the Department of Social Development and earns a monthly gross salary of R29 824.73. She went to buy some items for making her lunch at work. She got the till slip below as proof of purchase.

Here are the solutions to your questions:

1.1 Nontobeko's monthly gross salary is R29 824.73.
In words, this is:
Twenty-nine thousand, eight hundred and twenty-four rand and seventy-three cents.

1.2 To calculate the difference in prices for the pork sausages, we subtract the lower price from the higher price.
The prices for Boxer Pork Sausage are R32.98 and R32.27.

$$\text{Difference} = \text{R}32.98 - \text{R}32.27$$ $$\text{Difference} = \text{R}0.71$$

The difference in prices for the pork sausages is R0.71.

1.3 The prices of the 6 main items (excluding the bag charge) are:
R17.27, R28.56, R30.48, R32.27, R32.98, R12.99.
Arranging these prices in descending order (from highest to lowest):

$$\text{R}32.98, \text{R}32.27, \text{R}30.48, \text{R}28.56, \text{R}17.27, \text{R}12.99$$

1.4 To find the second least expensive item, we list all items and their prices in ascending order:

• Government24LBagEach: R1.19
• Halls16StickPack10s Ex: R12.99
• BananaLooseCissip/kg: R17.27
• CrnbdChcknBurgrsp/kg: R28.56
• FncknBurgrsp/kg: R30.48
• BoxerPorkSausage/kg: R32.27
• BoxerPorkSausage/kg: R32.98

The least expensive item is Government24LBagEach (R1.19).
The second least expensive item is Halls16StickPack10s Ex.

1.5 The total paid is R127.76.
To round this to the nearest 10 rands, we look at the units digit. Since the units digit (7) is 5 or greater, we round up the tens digit.

$$\text{R}127.76 \approx \text{R}130$$

The total paid rounded to the nearest 10 rands is R130.