3. If a. Definition of angle bisector
b. Midpoint Theorem
c. Definition of midpoint
d. Right Angle Congruence Theorem

It's A

Step-by-step explanation:

BF bisects angle GBE, therefore it's an angle bisector.

dont know

step-by-step explanation:

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation: