1. Which is the better deal?
DJ Alpha offers to host a disco for a set-up fee of £50, and £20 per hour.
DJ Bravo offers to host a disco for a set-up fee of £30, and £30 per hour.
Which is the better deal?
Does it make a difference how long the disco goes on for?

2. Pocket Money
Three children are each given pocket money based on a different rule:
Rule 1:
£2 for the first week. Add £5 each week.
Rule 2:
£10 for the first week. Add £2 each week.
Rule 3:
£0.50 for the first week. Double it each week.
Which would you prefer?

4. Pocket Money