Final answer:
To calculate Jay's dog's weight, we would need to multiply the cat's weight (4 pounds) by the given multiplier, which is missing from the question. Pounds are the correct unit of measurement for this scenario.
Step-by-step explanation:
The student's question involves calculating the weight of a dog based on the known weight of a cat. Using the weight of Jay's cat, which is 4 pounds, we need to know how many times heavier the dog is to determine its weight. Since the specific multiplier is not provided in the question, it's impossible to give an exact answer. However, to find the weight of the dog if we had that multiplier, we would multiply the weight of the cat (4 pounds) by that number. As a point of reference, pounds are the appropriate unit to use when measuring the weight of a dog, as ounces would be too small and tons too large for such a measurement.