Use a graphing calculator to graph the function 120 tan 2x on the interval 0º < x < 180° and -300 < y < 300 Evaluate the function at x = 55°, 110, and 165 Round to the nearest tenth.

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%)