The problem asks to solve the inequality $20 < 10b$ and graph the solution on a number line.

1. Problem Description

The problem asks to solve the inequality $20 < 10b$ and graph the solution on a number line.

2. Solution Steps

First, we solve the inequality for $b$.

$20 < 10b$

Divide both sides by 10:

$\frac{20}{10} < \frac{10b}{10}$

$2 < b$

This can also be written as $b > 2$.

The solution is all values of $b$ that are greater than

2. On the number line, we represent this with an open circle at 2 and an arrow extending to the right, indicating all values greater than

2.

3. Final Answer

$b > 2$