Could someone please help me. I will mark you the Brainiest.

Answer:
He has 18$
Step-by-step explanation:
He starts with 50$, mows 2 lawns, 12$ each, add another 24$, now he has 74$, then he washes a car which is 9$, now he has 83$. he buys two 15$ video games, which is 30$, now he has 53$ then buys a sweatshirt for 35$, 53$-35$ =18$. AND BOOM! He has 18$. YW, Have a nice day!