1. **Problem statement:** (a)(i) Find the total cost of 4 cinema tickets if one ticket costs 6.30. (a)(ii) If the cinema sells 10 tickets for the price of 9, find how much each person pays when a group of 10 people go. 2. **Formula and rules:** - Total cost for multiple tickets = number of tickets \times cost per ticket. - For the discount, total cost for 10 tickets = cost of 9 tickets. - To find cost per person, divide total cost by number of people. 3. **Calculations:** (i) Total cost for 4 tickets: $$\text{Total cost} = 4 \times 6.30 = 25.20$$ (ii) Total cost for 10 tickets with discount: $$\text{Total cost} = 9 \times 6.30 = 56.70$$ Cost per person when 10 people share this cost: $$\text{Cost per person} = \frac{56.70}{10} = 5.67$$ 4. **Explanation:** - For (i), multiply the ticket price by 4 to get total cost. - For (ii), since 10 tickets cost the price of 9, multiply ticket price by 9. - Then divide by 10 people to find individual cost. **Final answers:** (i) 25.20 (ii) 5.67