In some 4.0 grading systems, a student's grade point average (GPA) is calculated by assigning letter grades the following numerical values. A= 4.00 D+= 1.33 A-= 3.67 D= 1.00 B+= 3.33 D-= 0.067 B= 3.00. F= 0.00 B-= 2.67 C+= 2.33 C= 2.00 C -= 1.67. Use this grading system to find this students GPA. Round to the nearest hundredth. Tessa's cumulative GPA for 3 semesters was 3.59 for 46 course units. Her fourth semester GPA was 3.7 for 12 course units. What is Tessa's cumulative GPA for all 4 semesters