Suppose that athena takes an english, mathematics, and elective course during the semester. the english course is worth 3 units, the mathematics course is worth 3 units, and the elective course is worth 2 units. the grades she earns in the courses are b in english, b- in mathematics, and a- in the elective. please calculate her gpa for these three courses, rounded to the hundredths space (two decimal places).