A book weighs 1/3 pound. How much do 4 books weigh?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Find the value of x. round the length to the nearest tenth