What is the sum of this infinite geometric series?

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.

Jenny made a scale drawing of a city. the scale she used was 5 inches = 1 yard. what is the scale factor of the drawing?

Ty received 3/5 of his cds as gifts. if he has 60 cds, how many were gifts. explain: