Tony walked 80 feet away from the base of a tree and looked up at the top of the tree. The angle of elevation from his eyes is 14°. How tall is the tree if
Tony is 6 feet tall?

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?