Your grade in a class is determined by the average of three test scores. You scored 75 and 87 on the first two tests. To earn at least 82 for this course, how much do you have to score on the third test?
Let x be the score you will earn on the third test.
a. Write an inequality to represent this situation.
b. Solve this inequality. What is the minimum that you have to earn on the third test in order
to earn a 82 for the course?
c. You cannot score over 100 on the third test. Use interval notation to represent the range of
scores you can earn on the third test in order to earn at least 82 for this course.