The number line is graded such that each unit is divided into 8 equal parts (instead of 10).
This simply means that each graded portion along the line is a fraction of 8.
The point on the number line shows 8 and then 6 out of 8 parts. That means;
[tex]\begin{gathered} \frac{6}{8}=\frac{3}{4} \\ \\ 0.75 \end{gathered}[/tex]The point on the number line shows the number as 8 and 3 quarters, or 8.75
The decimal therefore is 0.75
