Mr. abad earned $30,000 last year. he must pay taxes of 10% on earnings up to $8,500, and he must pay taxes of 15% on the rest or his income. what is the total amount he must pay in taxes for his earnings last year, including the takes on his first $8,500 and on the rest of his earnings?

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.