Answer:
40 units
Explanation:
On the number line, the distance between x and y is given by
|x-y|.
To find the distance between -70 and -30 on the number line, we find the absolute value of their difference.
![| - 30 - - 70| = | - 30 + 70| = |40| = 40](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mbgk4s0fqo9u7ik49wd3rgdbzpfb51s65n.png)
Therefore the distance between -70 and -30 on the number line is 40 units.