Step-by-step explanation:
midpoint of BC is 63 middle of 60 and 65
Answer:
Option D. 
Step-by-step explanation:
we know that
The Centroid of a Triangle is the center of the triangle that can be calculated as the point of intersection of all the three medians of a triangle. The centroid divides each median in a ratio of 
In this problem the point R represent the centroid of triangle JKL
therefore

substitute the value

29% (.285 is 29 percent rounded because u have to move two decimals to the right to get your percentage)
Answer:
I am pretty sure that it is a