Sara is cutting ribbon for a craft project. she has 4 feet of ribbon, which must be cut into 7 equal lengths. how long will each piece of ribbon be after she has finished cutting

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

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

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