First, you would need to create an equation for this problem.

=

Next, you would cross multiply.
5x = 8,000
Now, all you would have to do is isolate the x. To do this, you would divide both sides by 5.
x = <span>
1,6001,600 people are considered middle class. I hope this helps!</span>
Is their any multiple questions
It is rational because any number that can be represented in a fraction is rational. 4/33 is a fraction, so it is rational.