1. The problem involves converting meal prices from Mexican pesos to U.S. dollars using an exchange rate. 2. The formula to convert currency is: $$\text{Price in USD} = \frac{\text{Price in Pesos}}{\text{Exchange Rate (Pesos per USD)}}$$ 3. Important rule: The exchange rate tells how many pesos equal one U.S. dollar. 4. For each person, list the appetizer, entree, and drink prices in pesos. 5. Sum the prices in pesos for each person to get their total meal cost in pesos. 6. Use the exchange rate to convert each item and total meal cost to U.S. dollars using the formula above. 7. Show intermediate steps with cancellation if simplifying fractions. 8. Add all individual totals to get the total price for all four people in pesos and in U.S. dollars. Since no specific prices or exchange rate were provided, this is the general method to solve the problem.