Answer:

1.because square then 1 triangle then square then 1 2 triangle then square 1 2 3 triangle then square 1 2 3 4 then square it counts 1 2 3 4

2.because it counts by 3 4 567 8 91011 12 131415 16 171819 20

3.because it counts by 6

4.

Step-by-step explanation:

kayo na bahala sa 4