The problem is: jin donated earning from 2 songs to a charity. he donated $864 altogether. jin's second song earned 5 times as much as his first song. a: how much money did jin's second song earn? show your workb: how much more money did jin's second song earn than his first song? explain.

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.