how do u fig out the final grade with each grade being a certain percentage below?

Your Grade** Date 95 04/10/2 70 80 07/03220 07/24/202 195 07/07/2024 90 07/10/2020 25 80-89 B Good 70-79 Average > Below 70 F Failing An overall course average of 70% or above is required to graduate and earn your diploma or certificate. Refer to the Academic Policies section of the Student Catalog on exam results. Lesson 1 exam 16.7% Lesson 2 exam 16.7% Lesson 3 exam 16.7% Lesson 4 exam 16.7% Final (proctored) 33.2%