A catering service offers 9 appetizers, 12 main courses, and 8 desserts. A customer is to select 7 appetizers, 6 main courses, and 2 desserts for a banquet. In how many ways can this be done?

Which of the binomials below is a factor of this trinominal? x^2-13+30

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?

Find two numbers if their sum is 91 and the ratio is 6: 7?