Triangle abc was rotated about the origin. which rule describes the rotation?
r0, 90°
r0, 180°
r0, 270°
r0, 360°

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb

50 points~ ! i have to turn this in tomarrow