Hello there!
The highest common factor, also known as the greatest common factor, or GCF, is the biggest factor that both numbers have in common.
Let's factor out our numbers.
27;
1 x 27
3 x 9
36;
1 x 36
3 x 12
4 x 9
6 x 6
Both of these numbers have these in common:
1, 3, 9.
Since 9 is the highest number in common, it is our GCF or highest common factor.
I hope this helps!
You may perform the division using either long division or synthetic division. Any preference?
I used synthetic div. with -2 as the divisor:
________________
-2 / 3 4 -10 0 15
-6 4 12 -24
-------------------------
3 -2 -6 12 -9
In factored form, with remainder, we then have:
(x+2)(3x^3 - 2x^2 - 6x + 12) remainder -9
If you need clarification of any part of this solution, let me know.
I think it is 77% or 77.7`% ,but tell me if I'm wrong
Please find the attached file for a proper understanding of the question given here. The diagram in the file attached is the complete accompanying diagram of the question.
As per that diagram, 
(which is given)
and we know that 
(vertically opposite angles).
Thus, the only way ΔDSB ≅ ΔTSR by SAS is when 
as indicated in the diagram.
Thus, is the correct answer.
