Scientists are measuring the thickness of ice on a large lake. When they first measure the ice, it is 3.1 inches thick. Three weeks later the ice was measured to be 5.5 inches thick. At what rate is the thickness of the ice growing in inches per week?

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.