51, because 39+12=51. You just add both parts of the tree. Please Rate Brainliest.
The answer is 10. because median means middle so 10 is the middle #.
First find the gradient of the line
Change in y/change in x
-3–3/-3-3
0/-6
=0 ( so the gradient m is equal to zero)
Y=0x+c
Input the coordinates of one point to find c
-3=(0*3)+c
-3=c
So the equation is
Y= -3