On three examinations, you have grades of 85, 78, and 84. there is still a final examination, which counts as one grade in order to get an a your average must be at least 90. if you get 100 on the final, what is your numerical average? 86.75 (type an integer or a decimal.) is an a in the course possible? yes no to eam a b in the course, you must have a final average of at least 80 what grade must you got on the final to earn a b in the course? type an integer or a decimal) enter your answer in the answer box and then click check answer all parts showing clear all pearson copyright © 2019 pearson education inc. all rights reserved. terms of use privacy