How do you record the steps when adding 2-digit numbers?

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 : )

Which of the following circles have their centers in the third quadrant? check all that apply.

Find the value of x in the diagram below. select the best answer from the choices provided