The m<B for question 1 is 46 degrees, for question 2 the m<Y is one hundred and seventeen degrees.
Answer:
endpoint is (29, -13)
Step-by-step explanation:
Formula for midpoint is 
So, let
be the coordinates of the endpoint you are looking for.
and
= (10, -3)

-9 +
= 20 7 + 

endpoint is (29, -13)
B because it u and 9 friends each want the same amount from splitting 1.30 which gives you .13