Can this tree be saved
Looks like a hackberry, a native tree.
Judging by the photos, it looks like it cannot be be saved, but you need to contact a tree service company which has a certified arborist on staff who can visit and give you a definitive answer. You'll want an arborist certified by the International Society of Arboriculture. To find one and the tree service company they work for, go to www.treesaregood.com.