Scientists can estimate the number of bacteria in a refrigerated food using the formula 0.2b=t^2/20 where b is the number of bacteria and t is the time in seconds. What was the approximate time a food was in the refrigerator if there were 625 bacteria?
As we know the formula that is 0.2b = t^2 / 20 so by putting values 0.25[625=t^2 / 20 125=t^2 / 20 so 125*20=t^2 t=50 by taking square root so correct option is C hope it helps
