Any violin players that know this pls help also what does wwhwwwh get you? Calling on all violinist.

Which number produces a rationale number when multiplied by 1/5

Equation for the calculation double 2 and then add 5

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 : )