Solve rational and radical equation.

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.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?