I will mark branliest if correct

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

We just started the introduction into circles and i have no idea how to do this.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd