Write 8, 128 in expanded form

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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 : )