Please i need help with this question 50 points

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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.

Match the one-to-one functions with their inverse functions.