Al predicted that he would sell 220 hot dogs at lunch time. when the hot dogs ran out, 35 people were still waiting in line to buy hot dogs. what was the percent error in the estimate? round the answer to the nearest tenth. –15.9% –13.7% 13.7% 15.9%

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.