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I need an answer quickly please and thank you

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.

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?