Faith had $263 to spend on 7 books. After buying them, she had $18 left over. How much did each book cost?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square