Respuesta :

Answer:

8

Step-by-step explanation:

MathPhys

Answer:

7

Step-by-step explanation:

Split into groups of 3.

5, 11, 18

1, 4, ?

16, 49, 121

(5 − 1)² = 16

(11 − 4)² = 49

(18 − ?)² = 121

Therefore, ? = 7.