The faces of a regular octahedron are what type of polygon?

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Acircle has a circumference of 28.36 units what is the diameter of the circle

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?