1. The problem asks how much yen you would make if you earned 20 yen per minute for a week. 2. First, calculate the number of minutes in one week. 3. There are 60 minutes in an hour, 24 hours in a day, and 7 days in a week. 4. So, total minutes in a week = $60 \times 24 \times 7 = 10080$ minutes. 5. Next, multiply the earnings per minute by the total minutes. 6. Total earnings = $20 \times 10080 = 201600$ yen. 7. Therefore, you would make 201600 yen in one week at 20 yen per minute.