Need help 1 to 5.

The table below shows the grade averages for five AMDM students. Category Bob Faye Cheryl Rosa Test Average (40%) 85 78 70 91 Quiz Average (20%) 89 75 81 98 Classwork (20%) 78 75 84 95 Final Exam (20%) 87 72 82 88 Write an expression to find each student's weighted average grade and then find the final grade. Show all work! 1. Bob's Grade? 2. Faye's Grade? 3. Cheryl's Grade? 4. Rosa's Grade? 5. If Bob had earned 100% on his final exam would he have gotten an "A" (90% or higher) in the class