David purchases a new pair of running shoes for R800 from Takealot. The shoes will be delivered to his flat in Hatfield.

Sally invites twenty guests to her birthday paerty. All the guests confirm that they will attend Sally’s birthday party. The day before the party, ten of the guests inform Sally that they will not attend the party because they prefer to attend a street party on the same date in Maboneng.

Adrian undertakes to sell the clouds and one raindrop to Cynthia for R500.

Nicolas enters into an agreement with himself and undertakes that he will save R500 each month by paying R500 into his savings account on the first day of each month.