Fix a modem?
You would be better of buying or getting a new modem
Depending on your needs they can be cheap or more expensive.
how much would it cost on a 2004 mercury sable
The year, make and model would help.
It would cost $725 bucks
It depends on what is broken on your water heater, as to how much it would cost to fix it. It might actually need to be replaced and be more cost effective to replace it.
I would assume it will cost anywhere from $100- $300 to fix your car brakes. Because they are an important part of your car it can be expensive to fix them .
about $4,739
250.00
$6,215,349,665
3,800!
Could you define a "computer blackbox"?
Usaulay only 20$
Which heat shield? There are several.