exam Maths Puzzle Numerical Ability

Find the distance between points (-4,0) and (-5,-3)

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exam Other Question

Simplify

3(m^-3)^-2nm^3b^-1/mm^2m^0m^-7(m^3)^3
it takes a passenger train 2 hrs less time than it takes a freight train to make the trip from central city to clear creek.the passenger train avarages 96km/h while the freight train averages 64km/h.how far is it from central city to clear creek?