I don’t understand how to set up the equation and expressions, I pretty much need help with everything

idk sorry :(((((((((((((((((((((((((((((((((((((((((((
cats: 2t
fish: 5t
16= 2t + 5t + t
dogs: 2, cats: 4, fish: 10
so if Amy has 2 dogs, she would have 4 cats (twice as many dogs) and 10 fish (5 times as many dogs).