Answer:
3/4
Step-by-step explanation:
A ratio of the diameters is one diameter divided by the other so the miniDVD divided by the DVD = 9/12 or 3/4.
A
272/64 = 4.25
4.25*48 = 204
x^2-4x+4-(x^2+6x+9)
=x^2-4x+4-x^2-6x-9
=-10x - 5