Which is a true statement about an exterior angle of a triangle?

What are the steps to solving the inequality 3b + 8 ≥ 14?

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 : )