We are given that:

• A case of mineral water costs $6.96.
• Each case contains 2 boxes.
• Each box contains 4 bottles.

Step-by-Step Calculation:

1. Number of bottles per case: $2 \text{ boxes} \times 4 \text{ bottles per box} = 8 \text{ bottles per case}$

2. Cost per bottle: $\frac{6.96}{8} = 0.87$

So, the cost of each bottle of mineral water is $0.87.

Would you like more details or have any further questions?

Here are 5 related questions you can explore:

1. If the price of a case increases by 10%, what would be the new price of each bottle?
2. What would the cost be if each bottle contained 20% more water but the price remained the same?
3. How many bottles would you need to buy to spend exactly $10?
4. If the store offers a 5% discount on each case, what will the new cost per bottle be?
5. What is the total cost for 5 cases of mineral water?

Tip: When dividing costs evenly, make sure you account for all components (like boxes and bottles) in a systematic way.