This right if not help me please. for brainliest.

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

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way