Answer:
make 360×each number given/15 students to start drawing
360×7/15=168°
360×5/15=120°
360×2/15=48°
360×1/15=24°
now draw each one from the radius give to the clockwise
if you don't know what's clockwise direction, see it from your house or tell anybody in your home to tell you where is clockwise
after you finish drawing, label each section by writing the names on the correct sections ( you can write in or out of the circle)
When dealing with roots, we want to factor to see if it's possible






now since we're dealing with square roots, we circle every pair of numbers we see in the final factoring
so..

now for every circled pair, we take only 1 of the 2 circled and bring it outside
anything left uncircled stays inside the root
so..

now simply multiply
Here! :) i hope this helps bunny!
If it was one year it would be 2200 and you just keep adding 200 for each year.