15 The Kellys are having dinner at a local restaurant. Mr. Kelly wants to give the server a 15% gratuity, and the sales tax is 6.5%. He will use the amount of the bill to find each additional amount. Part A Which components would Mr. Kelly use to write an equation to determine the total cost of the meal, given the amount of the bill, x? Select all the components of the equation. AX D x + 0.65 B) x + 0.15 E) 0.65x C 0.15x F 0.065x Part B By what percent does the cost of the meal increase with t ax and gratuity?