Patty has just completed her second semester college. She earned a grade of C in her 5-hour calculus course, a grade of B in her 1-hour economics course, a grade of C in her 3-hour chemistry course, and a grade of A in her 2-hour speech writing course. The formula for calculating grade-point average is points equals credits times grade. C equals 2 points, B equals 3 points, and A equals 4 points. Patty's grade-point average for the semester is: