FOIL (first outside inside last)
x^2-5x+5x-25 = x^2-25
Answer:
yes in 4 of the five countries the snowfall in inches is double the amount of time in hours
The ratio of heights = ratio of the square roots of the areas because area is 2 dimensional and height is one dimensional.
so required ratio is sqrt 40pi : = sqrt40:sqrt80 = sqrt1: sqrt2 = sqrt (1/2) = 0.7071 to 4 significant figures
