 
 <prompt> ```Marta dey work for her grandparent farm to gather money for new phone. So far, she don collect $240. For every hour wey she work, she dey collect $10. Her grandmother dey give her tips, and she don collect $50 for tips so far. How many hours Marta don work for the farm so far?``` <response>: ```Ignoring tips, Marta earn $240 - $50 = $190.
So, she don work 190 / 10 = 19 hours.

The final answer: 19.``` 