This circle is centered at the orgin, and the length of it’s radius is 5. what is the ewuation of the circle?

Asap will give brainliest and a lot of points

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

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 : )