The number of fish (f) in a fish tamk increases when the number of plants (p) increases. write the correct equation for this scenario, and solve for the number of fish when the number of plants is 3. graph: 15 plants to 6 fish 20 plants to 8 fish. a. f=p f=3 b. f=4p; f= 1.2 c. f = 90/p; f =30 d. 90/p ; f= 270