I need someone to answer this I’m doing an exam so can U hurry?

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.

Why is it preferable to code web pages in html format? a. to create more lines code b. to apply general formatting rules c. to display properly as search results in all browsers d. to add meaning to the document

Radar devices are used by law enforcement to be sure that individuals are driving safely. they tell the officer how fast the vehicle is traveling at that specific moment in time. the radar device determines the vehicle's a. instantaneous speed. b. acceleration. c. maximum velocity. d. average speed.