Troy drew the diagram below. The inner circle has a radius of 2 units, and three outer circle radius of 5 units. Troy says the two circles are similar. Which statement best explains wether Troy is correct, and why?

Which expression gives you the distance between the points (5,1)and(9,-6)

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct