He teacher in Lizzie Gunderson's drama class assigns weights to students' performances as follows: 50% for script memorization, 20% for acting skill, 20% for quiz results, and 10% for attitude. What i

He teacher in Lizzie Gunderson's drama class assigns weights to students' performances as follows: 50% for script memorization, 20% for acting skill, 20% for quiz results, and 10% for attitude. What is Lizzie's average grade if she earned 90% in script memorization, 85% in acting skill, 75% in quiz results and 100% in attitude? Round to the nearest tenth of a percent.