A company sells three types of gift bags, which include movie passes, x, microwave popcorn, y, and DVD, z, the basic basket has two movie passes and one pacage of microwave popcorn, and cost $15.50. The medium basket has 2 movie passes, 2 microwave popcorn and one DVD and costs 37.00 the super basket has four movie passes, three microwave popcorn, and two DVD and costs 72.50