Sean builds birdhouses and sells them online. It costs him $6.80 to build each birdhouse. He decides to sell them at 60% markup. How much does Sean markup each birdhouse?

Working on itts i’m going to need you to me as i go along 1-5

Statement: if two points are given, then exactly one line can be drawn through those two points. which geometry term does the statement represent? defined term postulate theorem undefined term

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?