hello i need help with this problem please

One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 3-credit course, a B in each of three 4-credit courses, a C in a 3-credit course, and a D in a 4-credit course? The mean grade point score is . (Round to the nearest tenth as needed.)