What is 22 divided by 7?

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.