Solve the following equation for X to find the total number of people who downloaded songs for music site for a certain month. X= 0.6x + 384
How many people downloaded songs from the site that month?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)