Carolina has 55 guppies in her fish tank she gives 28 guppies to her friend the num ner ig guppies remaining is three times the number of tetra fish in her tank how many tetra fish t are in her tank?

So you have 55 guppies to begin with, then she gives away 28 so she now has 27 guppies. Since the number of tetra fish is 3 times the amount of guppies you can make this equation 3t=27 to find the number of tetra fish is, then once you solve it you get 9