1. **Problem statement:** A girl receives $n$ cedis each week as pocket money. She saves this money for 5 weeks and then buys a present costing 7900 cedis. 2. **Expression for the amount of money left:** - Total money saved after 5 weeks is $5n$. - Cost of the present is 7900. - Amount left after buying the present is total saved minus cost: $$5n - 7900$$ 3. **Minimum amount to save each week:** - To afford the gift, total saved must be at least 7900. - So, $$5n \geq 7900$$ - Divide both sides by 5: $$n \geq \frac{7900}{5} = 1580$$ **Final answers:** - i. Amount left: $$5n - 7900$$ - ii. Minimum weekly saving: $$1580$$