Question: 1. On a number line how many units to the right is $-5$ to $+5$?
a. $0$ b. $2$ c. $8$ d. $6$ e. $10$
1. **Problem:** Find how many units to the right is from $-5$ to $+5$ on a number line.
2. **Formula:** The distance between two points $a$ and $b$ on a number line is given by the absolute value of their difference: $$\text{distance} = |b - a|$$
3. **Apply the formula:** Here, $a = -5$ and $b = 5$, so
$$\text{distance} = |5 - (-5)| = |5 + 5| = |10| = 10$$
4. **Interpretation:** The distance from $-5$ to $5$ is $10$ units to the right.
5. **Answer:** The correct choice is e. $10$.