A laptop computer is on sale for 10% off the original price of $1,500 and a 7.25% sales tax is added after the
discount. What is the total cost?

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .