Final answer:
Yoryi will make payments for 9 months.
Step-by-step explanation:
To determine the number of months (m) Yoryi needs to make payments, we can solve the equation 200 + 30m = 470. Here's how:
- Subtract 200 from both sides of the equation: 30m = 270.
- Divide both sides of the equation by 30: m = 9.
Therefore, Yoryi will make payments for 9 months.