Please helppp answer quick

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 : )

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y