Five mummies are getting ready for a party. They each need a different amount of fabric to use as their costume. Mummy 1 needs 10 yards less than Mummy 2. Mummy 2 need twice as much as Mummy 3. Mummy 3 needs 6 more yards than Mummy 4. Mummy 4 needs half as much fabric as mummy 5. Mummy 5 needs 20 yards.