What is the answer for this question?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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 : )

Given the net of the rectangular prism, what is its surface area?