In order to determine the score that she needs, we have to know about the mean. The <em>mean </em>is the average thatwe use frequently, where we add up all the numbers and then divide by the amount of numbers.
We have to make a equation where let be x the fourth score. Then:
You can just overall divide 100 from 25 to get a percentage because you're trying to find the percentage of captown only but per se if you were to find various cities in Maltania than you can just divide 100 by the percent of the population.