A student receives the following grades, with an Aworth 4 points, a B worth 3 points, a Cworth 2 points, and a Dworth 1 point. What is the student's weighted mean grade point score?
B in 2 two-credit classes D in 1 three-credit class
A in 1 three-credit class
C in 1 four-credit class
Round to the nearest tenth as needed.)