Jon's dog weighs (v) pounds. His cat weighs 21 pounds less than his dog. His bunny weighs 3 pounds less than his cat? What is the weight of Jon's pets?

Answer: the weight of Jon's pet is

(3v - 25) pounds

Step-by-step explanation:

The weight of Jon's dog is v pounds.

His cat weighs 21 pounds less than his dog. It means that the weight of his cat would be

(v - 21) pounds

His bunny weighs 3 pounds less than his cat. It means that the weight of his bunny would be

(v - 21) - 3 = (v - 24) pounds

Therefore, the weight of Jon's pets would be the sum of the weight of his dog, his cat and his bunny. It becomes

v + v - 21 + v - 24 = (3v - 25) pounds.