What are the measurments of <BEC and <ABE

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

24m^2n+30mn^2+18mn, a sweet challenge!