Plz help hurry timed UNIT test

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.

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me