Maya’s school held an aluminum collection program in which they collected aluminum and brought it to be recycled. In the first week, Maya collected four over twenty lb of aluminum and her friend Abigail collected seven over eight lb. a. Which girl collected more aluminum?

b. How much aluminum did the two girls collect?

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

Having a hard time understanding this question (see attachment).

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.