A student scored 67 points on his Psychology 101 midterm. If the average of his midterm and final must be between 79 and 90 inclusive for a? B, then for what range of scores on the final exam would a student get a? B? Both tests have a maximum of 100 points.? Hint: Create a compound inequality with his average between 79 and 90 inclusive.
For a B? grade, the? student's final exam score must be in the range _____________. ?(The answer will be two whole numbers and I need it to be in interval? notation, please.)