Question

The blue dot is what value on the number line

Answer 1

8 and 12 are separated by 1 line, and they have a difference of 4 units, so..

count every two lines and add 4 units

this means that the blue dot is 20

Answer 2

Answer: ok so i might as well explain why the answer is 20 to me so i put 1 at the start of the number line then the next number was 2 so what i basically did was put 1 2 4 6 8 10 12 14 16 18 20 i am not that good at  explaining

Step-by-step explanation:So i didn't really understand the other persons explanation so i put my own