3. Angle ABC is taken by a dilation with center P and a scale factor of 1/3 to angle A'B'C'. The
measure of angle ABC is 21°. What is the measure of angle A'B'C'?

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

Which choice represents the sample space ,s for this event

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?