1. **State the problem:** We need to find the total cost of buying one granola bar and one hot dog. 2. **Identify the prices:** From the table, the price of one granola bar is $1.88 and the price of one hot dog is $2.42. 3. **Write the expression for total cost:** Total cost = price of granola bar + price of hot dog 4. **Calculate the total cost:** $$\text{Total cost} = 1.88 + 2.42$$ 5. **Add the numbers:** $$1.88 + 2.42 = 4.30$$ 6. **Final answer:** The total cost of one granola bar and one hot dog is $4.30.