4. During the first four weeks of her life, a baby girl increases her mass from 3.2 kg to 4.7 kg. What percentage increase does this represent?
(Give your answer to 3 s. f.)

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 : )