Consider the following table used for grading assignments:

3. Consider the following table used for grading assignments. (40 points) Score in points Grade 90-100 A 80-89 B 70-79 60-69 D 0-59 F Create a table that lists the valid and invalid equivalent partitions and give the test cases for each. Your test cases are required to incorporate boundary value testing; please include a column to show the expected LETTER grade expected for all tests