Search the internet for another type of monthly payment (expense) you might have as a teen or adult that would include an initial payment or start-up cost, e.g., a down payment/deposit, registration fee, etc. Some examples: Car lease or loan (with interest), house payment (mortgage), cell phone service, gym membership. 1. Explain the scenario. 2. Cite your resources - websites etc. 3. Label the variables in your scenario. 4. Initial fee or deposit. 5. Write the equation to model the situation. Explain the equation