4
3
?
2
5
10
5
15
20
What is the missing number?​

i think it's 7

Step-by-step explanation:

i think the pattern is like

x + x = x

x • x = x ( • = multiplication sign)

x + x = x

Hope this helps ;-;

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )