Susan has just completed her second semester in college. She earned a grade of Upper A in her 1​-hour discrete math ​course, a grade of Upper C in her 1​-hour sociology ​course, a grade of Upper D in her 5​-hour chemistry ​course, and a grade of Upper D in her 2​-hour studio art course. Assuming that A equals 4​ points, B equals 3​ points, C equals 2​ points, D equals 1​ point, and F is worth no​ points, determine Susan​'s ​grade-point average for the semester.



Answer :