So far Glenda has made an 93, 91, 88, and an 85 on the tests…

So far Glenda has made an 93, 91, 88, and an 85 on the tests in her history class. Glenda desperately wants to make at least a 90 in the course. Assuming that the tests and the final are weighted the same amount, create an inequality to determine what she must make on the final to get an A in the course.  (Hint: Let x be the grade for her final exam and average the 5 test scores.)