30 millimeters is the difference between the two heights
Answer:
They are parallel and congruent
Step-by-step explanation:
Hey Joshua!
The correct answer is option A
a= 11 + 4b - 4c
-4c = a + 11 + 4b
Divide both sides by -4
-4c/-4 = (a + 11 + 4b)/-4
c = a -4b - 11/-4
I hope I helped!