What is 76÷6 rounded to the nearest hundredth

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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.

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.