A kayak can be hired for different numbers of hours, as shown in the table below.

Select the answer that shows how to calculate the cost of hiring a kayak.

A biscuit factory produces 72 000 packets of biscuits in a year.

Production is expected to increase by 1500 packets each year.

Which of these will give the best estimate of the production of the biscuit factory in 3 years' time?

In a set of five consecutive whole numbers, the largest number is given the value .

The smallest number in the set has a value of

Richard is ascending in a hot air balloon.

The temperature drops by the same amount every 50 metres that Richard ascends.
 

 
At ground level the temperature is 31°C.

At a height of 600 metres, the temperature is –5°C.

What is the air temperature at a height of 200 metres?

Australia Post use formulas to calculate the cost of boxes sent in the post to local destinations.

They calculate the size of the box by the formula:
 

size = width + height + length

 
The minimum postage applies to boxes with a size of 110 cm or less.

Which box below is oversized?

Zoe collected 8 baskets of eggs from her chicken coup.

Each basket had the same number of eggs and a total of 96 eggs were collected.

Which equation shows the average number of eggs,  ,  in each basket?

Aaron has $3 less than Brendon. 

Using    for Aaron's money and    for Brendon's money, which equation correctly describes this fact?

Package Delivery Pty Ltd charges the following for delivering a package with mass    kg

What is the mass, in kg, of a package that costs $90 to deliver?

Ryan and Oliver are buying goldfish for their fish tank.

Oliver buys 3 times the number of goldfish as Ryan does, plus another 5.

Let be the number of goldfish that Ryan buys.

Which expression represents the number of goldfish Oliver buys?