That would very much depend on the model year.
You should be able to look at the front of the engine and actually count them.
One thing they all do have though is what is known as the serpentine belt.
See "Related Questions" below for more
Serpentine / accessory drive belts price around $15-30.Don't go cheap on this particular item.See "Related Questions" below for tons more about Sable serpentine belts.
your mom is mercury
On a 2002 Mercury Sable : Each wheel has ( 5 ) lugnuts / total of 20
A V6 engine in a Mercury Sable takes ( 6 spark plugs )
typically the 1992 Mercury Sable can hold up to 16 gallons
Mercury Sable was created in 1986.
According to the 1997 Mercury Sable Owner Guide ( 16.0 U.S. gallons )
According to the 1998 Mercury Sable Owner Guide : ( 16.0 U.S. gallons )
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mercury sable
A key is needed to enter, lock, and unlock many Mercury Sable cars. A key is also needed to start the engine.
According to the 2002 Mercury Sable Owner Guide : ( 18.0 U.S. gallons )