Distance between -13,10 and -7,2

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

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 : )