7. Complete the following table. Round each answer to the nearest penny. Sold As Item Wrapping paper a) 6 rolls for $11.99 Unit Price b) 24 rolls for $15.99 c) 30 rolls for $17.29 8. On a shopping trip to Niagara Falls, U.S.A., Robin, who lives in Niagara Falls, Ontario, buys a digital camera for $89.99, taxes included. If the current exchange rate is $1 U.S. $1.2054 Cdn, calculate the cost of her camera in Canadian dollars. == 9. A large retail store is offering a patio set for a cash price of $699 plus tax. They also have an installment plan of 36 monthly payments of $25.99. a) Calculate the after-tax cash price. b) Calculate the total cost by using the store's installment plan. c) What is the difference in cost between the cash price and the instalment plan