Identify a reasonable approximation for the solution of this system

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

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.