Answer:
The scale factor is 3
Step-by-step explanation:
The reason is that 12, 15, and 9 equal 4, 3, and 5 if divided by 3
72.9
Multiply your first 2 terms
4.5* (-9) = -40.5
multiply this by -1.8
-40.5*-1.8 = 72.9
C
Hope I was able to help!! :)
2x(3x-9x)
=2x(-6x)
=-12x^2
