Respuesta :

6+5+11+15=37

so she sold 37 cups of lemonade in 4 hours

Answer:

She sold 37 cups of lemonade.

Step-by-step explanation:

6 + 5 = 11

11 + 11 = 22

22 + 15 =37

Hope this helps! Let me know if you need anymore help. :)