Egeria densa (Anachris), Nymphaea lotus 'Red,' Cabomba caroliniana var. caroliniana on the right and the one in the middle is a Myriophyllum species, possibly Myriophyllum aquaticum respectively.
The anachris needs cooler waters to live or it will die, keep the temperature in the low 70's, around 73F.
The plants you got aren't particularly demanding, so they should do well.
The lotus will get huge and take over the tank if you don't cut it back. Also, keep the bulb attached to the lotus out of the substrate or it will rot.