GUIDED PRACTICE
1. There are 16 students registered in math class a week
before the semester begins. One week later there are 20 students registered for
the class. What is the percent of increase?
2. On the first day of the semester, 20 students are attending
in a class. At the end of the semester, there are only 16 students in the
class. What is the percent of decrease?
3. A man working for Company A is earning $8 per hour. If he
gets a raise of a dollar per hour, find the percent of increase.
4. A man working for Company B is earning $12 per hour. If he
gets a raise of a dollar per hour, find the percent of increase.
