33 students in a math class took their chapter test, and 25 of these students passed their test. What percent of students failed the test? Round your answer off to the nearest tenths place.

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%)