10. three lines 2,k, and j lie in the same plane. lines land k are parallel. lines land jare
perpendicular. which one of the following correctly describes the relationship
between lines k and j?

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%)