When you divide fractions you multiple the first fraction by the reciprocal of the second.
So it would be:
3/20 ( 10/7)
Your final answer is 3/14
I believe it is 2.5, or 5/2
First in the right one; second in the left one; third in the right one; fourth in the left one; fifth in the right one
X^2 + 3x - 6
This is because x^2 and 3x have nothing they can combine with, leaving them as their own number. 1 + - 6 will give you -5 as adding to a negative only reduces not adds entirely.
Hope this helps!