Respuesta :

Answer:

10

Step-by-step explanation:

√81 = 9   (9+9-4*2)

4 * 2 = 8  (9+9-8)

9 + 9 = 18 (18 - 8)

18 - 8 = 10

Answer: hamburger

Step-by-step explanation:

Just kidding is 10