we believe heavenly father, jesus christ, and the holy ghost to be 3 separate beings, also referred to as the trinity, so yes we do believe in that
We believe that we can be forgiven of our sins thru repentance which was made possible thru the atonement and the crucifixion. Not that we commit sins our whole lives and then bring in a priest on our death bed and say I am sorry and all is good....
so to answer to your statement, yes we believe in the trinity and yes we believe in salvation, but thru repentance.
So yes we are Christian, and yes we believe in the Bible