Answer for 20 points

You can model the population of a certain city between 1955-2000 by the radical function p(x)=55,000 sqrt x-1945. using this model, in which year was the population of that city 220,000

Which of the following is true for the relation f(x)=2x^2+1

Acircle has a circumference of 28.36 units what is the diameter of the circle