The sum of 18 and twice malik's score

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

27 is what percent of 108? 27 is % of 108