Why is 2(7^0)=2 correct?

Answer this question! 30 points and brainliest!

For each proportion find the unknown number x 1/5/8=×/15

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 : )