What property is shown in the following equation?

17 + 8 + 3 = 17 + 3 + 8

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?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

How do i put 3(x+7) in distributive property