Respuesta :

Answer:

12 cars.

Step-by-step explanation:

We know he makes 40$ a day automatically.

61 - 40 = 21.

Now, this is the remaining amount he made just from car washes.

21/1.75 = 12

Hopefully this helps! If it did, consider giving a Brainliest :P

Ask any questions about my explaination in the comments :)