sam needs to rent a car for a one-week trip to oregon. he is considering two companies
a+ auto rental: $175 plus $0.10 per mile
zippy auto rental: $220 plus $0.05 per mile.
write and solve a system of equations to determine when the rental costs are the same for
both companies.

so far i have..
x=miles
y=10x+175
y=.05x+220

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.