What factors should the responding officer consider when he realizes that he is on a "hot" call– a potentially dangerous situation that is currently unfolding?

Use a while-end loop in a script file to calculate the sum of the first n terms of the series: summation sign on the top n bottom k=1 : )^k * k^2 +5k)/3^k show the script file and the two results of n = 10 and n = 20.