Use ruler and compasses to draw a triangle ABC with: AB of length 3 cm, AC of length 4.5 cm and BC of length 2 cm.

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%)