Keith had two hundred sixteen dollars to spend on six books. After buying them he had eighteen dollars. How much did each book cost ?

What is the length of the unknown leg in the right triangle ?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

What is 1/3x5 on anuber line what does it look like on a number line