In the diagram, EDC is a _
_ of ABC about point C.
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Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals