Respuesta :

Answer: The answer should be 20

Step-by-step explanation:

1+1=2

2+2= 4

3+3=6

4+4 = 8

th

Answer: 2, 4, 6, 8

Step-by-step explanation:

1+1 = 2

2+2 = 4

3+3 = 6

4 +4 = 8