This is Italian Vallisneria also known as Italian Val. The price is for one rooted plant grown submersed. This is an easy to grow grass like plant for the back of your tank. They can grow tall or short depending on if you trim the leaves.
This is a portion of red root floaters. Anywhere between 8-12 pieces depending on size. Red root floaters is a floating plant that benefits from having little to no flow or surface agitation. A sponge filter or hang on back will cause this plant to die back quickly. I recommend an internal or canister filter on the tank.