21 +__= 61

Please answer quick!
If answered correctly I’ll mark you brainlist!

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 statement about the graph of y = 8(0.25)^2

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25