1. The problem asks: Which clock shows 15 minutes before 10:00? 2. To find 15 minutes before 10:00, subtract 15 minutes from 10:00. 3. Using time subtraction: $$10:00 - 0:15 = 9:45$$ 4. Now, check the clocks: - Left clock shows 8:45 (hour hand just before 9, minute hand at 9 which is 45 minutes). - Right clock shows 2:50 (hour hand just before 3, minute hand at 10 which is 50 minutes). 5. Since 15 minutes before 10:00 is 9:45, neither clock shows exactly 9:45. 6. However, the left clock shows 8:45, which is 1 hour earlier than 9:45. 7. The right clock shows 2:50, which is much earlier than 9:45. 8. Therefore, neither clock shows 15 minutes before 10:00 (which is 9:45). Final answer: None of the clocks show 15 minutes before 10:00.