A sphere has a radius of 3 ft. What is the volume of the sphere? Give the exact value in terms of Pi.

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

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.

With this question, the answer with the red arrow is incorrect!