Answer:
The percent of the people said that they live in Houston is 32%.
Explanation:
Think of 250 as a whole, or 100%.
The way I do it is to put it in fraction form, then divide the numerator by the denominator.
In this case...
NUMERATOR = number of people in Houston
--------------------
DENOMINATOR = total amount of people surveyed
80/250, then you divide 80 by 250, which will give you a decimal number of 0.32.
0.32 is 32% in decimal format, since 1 would be 100%.
Hope this helped. :)