Logan's total expenses are $20,000 + $5,000 + $8,000 = $33,000.
To have at least $42,000 remaining, Logan must earn $33,000 + $42,000 = $75,000 in total.
Therefore, Logan must earn an additional $75,000 - $65,000 = $10,000 each year.
#### 10000
The answer is: 10000
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
If Logan currently earns $65,000 a year and spends $20,000 on rent, $5,000 on groceries, and $8,000 on gas annually, how much additional money must he earn each year to have at least $42,000 remaining?

### Answer:
