Depends. Prices vary based on locale and insurance payments if any. Usually fairly cheap though.
Hand xrays. I know it is confusing, but it depends upon the number of images taken and what type of insurance and co-payment you have.
That depends upon. The number of views, the reason for the xray determines that, and many other factors such as whether the rate is that of a pre agreement with an insurance carrier, deductible etc, it is so exceedingly complicated! There should be an easier way. But even more important, what to do after the xray?