If the measure of angle 3 is 130 degrees what is the of angle 7 ? why ?

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 : )

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2