Inequalities are just like regular equations with only one exception. Which is when yo multiply or divide by a negative number to both sides of the inequality sign you must flip it. But, for this inequality that rule will no apply. So, what I do to make it easier because I know we all see a different sign in an equation and we start to freak out. So, change the inequality sign to an equals sign to get a hang of working with them.
Example of changing an inequality sign to an equals sign:

Addition property of equality

or
Example of keeping the inequality sign

Addition property of equality

What the question that is being asked here?
The square root of pi is 1.77245385091.
6.875 inches, you divide the fraction to get a decimal
1. Simplified already
2. 5x^2 x (3x+5)
3. 3x^3 x (3x^4 +11)