What is a expression equivalent to 7/8

Solve the triangle. a = 21°, c = 105°, c = 5

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the