A student earned grades of C,A,B, and A. Those courses had these corresponding credit hours: 4,6,1, and 6. The grading system assigns quality points to letter grades as follows: A=4, B=3, C=2, D=1, and F=0. Compute the grade point average (GPA) and round the result to two decimal places.

first 4 credit class earns a C is worth:
4(2)= 8
second 6 credit class earns a A is worth:
6(4) = 24
third 1 credit class earns a B is worth:
1(3) = 3
fourth 6 credit class earns a A is worth:
6(4) = 24

add up the total points
8+24+3+24=59
add up total credits
4+6+1+6=17

divide total points by total credits
59/17 = 3.47 GPA