53+53+53+53+53+53=318
if you add 53 six times you get 318
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>
350(1+0.75)t (add the numbers)
350*1.75t (Calculate the product)
612.5 t