Which statement is true about heartworm and dog prevention expenditures?

Which statement is true about heartworm and dog prevention expenditures?

• A. The annual spending on heartworm prevention is about $1.2 Billion
• B. The annual spending is about $12 Billion
• C. The annual spending is about $120 Million
• D. The annual spending is about $2.4 Billion

Answer: (A)

Estimating large-scale expenditures comes down to combining how many units are involved with how much each unit costs. For heartworm prevention in dogs, think of how many dogs are actually treated each year and the typical yearly cost per dog. There are tens of millions of dogs in the U.S. and the preventive products cost on the order of roughly fifty to sixty dollars per dog per year (monthly treatments add up to about $5–$10 a month). Multiply a rough national dog count by a typical annual per-dog cost, and you land in the ballpark of about one to a few billion dollars each year. The figure around 1.2 billion dollars fits that reasonable range, making it the best match. The other numbers push the scale too far in either direction: twelve billion would require many more dogs treated or much higher per-dog costs; one hundred twenty million would imply an unrealistically low per-dog annual cost; and two point four billion would require about twice the typical expenditure per dog or a much larger treated population. So the statement around 1.2 billion dollars is the most plausible.

Estimating large-scale expenditures comes down to combining how many units are involved with how much each unit costs. For heartworm prevention in dogs, think of how many dogs are actually treated each year and the typical yearly cost per dog.

There are tens of millions of dogs in the U.S. and the preventive products cost on the order of roughly fifty to sixty dollars per dog per year (monthly treatments add up to about $5–$10 a month). Multiply a rough national dog count by a typical annual per-dog cost, and you land in the ballpark of about one to a few billion dollars each year. The figure around 1.2 billion dollars fits that reasonable range, making it the best match.

The other numbers push the scale too far in either direction: twelve billion would require many more dogs treated or much higher per-dog costs; one hundred twenty million would imply an unrealistically low per-dog annual cost; and two point four billion would require about twice the typical expenditure per dog or a much larger treated population. So the statement around 1.2 billion dollars is the most plausible.