Hey i got banned on my first account for no reason

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 : )

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent