In a recent year, 31.1% of all registered doctors were female. if there were 56,900 female registered doctors that year, what was the total number of registered doctors?

Simplify using positive exponents only.

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.

Simplify 1 divided by 2/3 x (-3) divided by 1/6 x (-10)