in short, we simply divide the whole 300 by (3+7), to get in a 3:7 ratio, and then distribute accordingly.

Area of hexagon = base * (apothem/2) * 6 = 3(base*apothem)
=3*15*20
=900 square units.
However, a hexagon consists of 6 equilateral triangles in which the apothem is 0.866 times the base, meaning that the apothem is shorter than the base.
Perhaps the base is 20 and apothem 15. The answer will come to be the same though.
You can use the is/of = %/100 formula, and just simply input the values.
Therefore, 170/580=%/100
580x=170,000
29.31