Bikers were 1 /2 finished with their ride at the 6-mile mark. how long was their ride? f. 4 miles g. 6 miles h. 9 miles i. 12 miles

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%)