Answer:
1. Bottled water: elastic 2. Toothpaste: inelastic 3. Crest toothpaste: elastic 4. Ketchup: inelastic 5. Diamond bracelets: elastic 6. Microsoft's Windows operating system: inelastic
Explanation:
1.- Water in general should be inelastic because is vital. However, since there is plenty of it, it is elastic.
2.-Toothpaste is inelastic because it doesn't have many substitutes.
3.- Crest tooth paste is elastic because it has many substitutes. (many other brands can replace it)
4.- Ketchup is inelastic. It doesn't have many substitutes.
5.- Diamonds bracelets are elastic because if their price rises the demand diminish because people don't have so much income to buy them.
6.- Microsoft Windows operating system is inelastic because it doesn't have many substitutes.
