Which should equal 105 to prove that f // g ?

a
b
c
d
hurry

since you have the 75, we know that a would equal 105 for line g , since a line = 180 degrees

 so to make line f parallel with g it needs the same angles with line n as line g has

so if a = 105, then angle d would also need to be 105

 The answer is D

(x+3)(x+7)

step-by-step explanation: