t = 5 + 3m is the required expression that represents weight of Tony fish
<h3><u>Solution:</u></h3>
Let "t" represent the weight of Tony’s fish, and let "m" represent the weight of Mary’s fish
To find: expression that represents the weight of Tony's fish
According to given information,
Tony’s fish weighs five pounds more than three times the weight of Mary’s fish
Here the word "times" represents multiplication and "more than" represents addition
Weight of Tony fish = 5 + three times the weight of Mary’s fish
Weight of Tony fish = 5 + 3(m)
t = 5 + 3m
Thus the required expression is found out