what’s the rule ? plz help

Answer:
for every 4 inputs there are 4 outputs
Step-by-step explanation:
Answer:
S divided by 2 plus 2
Step-by-step explanation:
4 divided by 2 = 2 + 2 = 4
6 divided by 2 = 3 + 2 = 5
7 divided by 2 = 3.5 + 2 = 5.5
1 divided by 2 = .5 + 2 = 2.5