PLEASE help I really have to get this right! The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people. What is an equation that gives the city's population p (in thousands of people) x years after 2010?
A. p=4x+50
B. p-450=4(x-5)
C. p-15=4(x-450)
D. p=4x+15

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Find cot x if sin x cot x csc x = √2

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.