(a) Zara owns a hairdressing salon. She buys a pack of 60 bottles of shampoo from a warehouse for $240. She plans to sell the bottles of shampoo to her customers for $5.50 each. (b) The exchange rate between dollars ($) and pounds (£) is $1 = £0.64 . The exchange rate between dollars ($) and euros (€) is $1 = €0.78 .

1. (a)(i)Calculate the percentage profit Zara makes on each bottle she sells for $5.50 .[2]
2. (a)(ii)Zara sells 45 bottles at the full price then sells the rest with a 20% discount. Calculate the total profit she makes selling all 60 bottles.[2]
3. (a)(iii)When the warehouse sells a pack of shampoo for $240 it makes a profit of 15%. Calculate the price paid for the pack of shampoo by the warehouse.[2]
4. (a)(iv)Zara borrows $2500 from a bank to make improvements to her salon. She is charged 4.5% per year simple interest. She pays the money back after 3 years. Calculate the total amount Zara must pay to the bank.[2]
5. (b)(i)Luke changes $250 into pounds. Calculate how many pounds he receives.[1]
6. (b)(ii)Complete the statement to show the exchange rate between pounds and euros. Exchange rate £1 = € ..................[2]