In a class in which the final course grade depends entirely

Last updated: 9/16/2023

In a class in which the final course grade depends entirely on the average of four equally weighted 100 point tests Sarah has scored 89 91 and 83 on the first three What range of scores on the fourth test will give Sarah a B for the semester an average between 80 and 8 inclusive Assume that all test scores have a non negative value Express your answer in interval notation Correct Answer