How come 1+1 is 2 but 2+2 isn’t 3 may seem silly but think about it

Two lines that do not intersect are skew. always sometimes or never

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian 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? i need this done