However, there are several other factors that affect home sales and as you may be aware price is only one. There is location and condition. All of these need to fit together in a "pretty little box" to attract buyers and that is usually done by working with your Realtor to determine the best way to price and present your property so that it competes well with the other homes in the area.
After you have determined the best way to present your home, with all of these key factors addressed, the marketing of your property to have it stand out from competing homes in the area is essential. You will want your home to be visible to prospective buyers (and, in many cases, their Realtors) everywhere!
Good luck and I do hope that you will find this information helpful to you in selling your home. It really hasn't been on the market that long and you still have plenty of time to make any adjustments to the "key factors" to bring your home to the front of the competition in the Billings area. Sit down with your Realtor and make a new plan, if necessary. It will happen!!
Your home may not be overpriced, but it may not be priced right for your situation. Price is the one piece of the puzzle that trumps even location. If you want to sell fast, then you need the fast sale price. If you want to wait out for the top dollar, it will probably take longer.
Obviously, this is just my opinion in general, and I can't give you a solid factual based answer without knowing anything about your situation. :)
I would say that if you want to sell your home in the first thirty days, yet it is not selling in that timeframe, the price is probably too high.
There are other things you can do to help your home show better if you don't want to lower the price.
Also, make sure your agent gathers feedback from the showing agents for you. This will pinpoint problems that you could address.
If there is a very interested party, you can always make them an offer. It's not the norm, but it is still doable. If they are serious buyers it might be the nudge they need to make the decision.