The best seat in a movie theater is thought to be one in the center of a row that provides a viewing angle of the movie screen. The person silling in this seat is exactly the same distance from each end of the movie screen as shown, 45 NA 45° Movie Screen W What is the measure of PAB?​

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%)