The table below shows a stem-and-leaf diagram for the test scores of students in a math class.

StemsLeaves
65 7
70 4 5 5 8
80 0 1 1 2 3 4 5 5 7
91 5


How many students took the test?

What is the lowest score on the test?

What is the highest score on the test?

The median score on the test is: