Ustin made 6 pounds of granola to sell at his community fair. He charges $6.35 for each 23 pound bag of granola. How much money will Justin earn if he sells all of the granola?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).