Yeah you did them all correct. (love your handwriting btw. its better than mine lol)
Answer:
Option D. 18 cm
Step-by-step explanation:
we know that
A <u><em>centroid</em></u> of a triangle is the point where the three medians of the triangle meet.
A median of a triangle is a line segment from one vertex to the mid point on the opposite side of the triangle.
The centroid divides each median in a ratio of 2:1
In this problem the centroid of triangle RST is the point X
so

-----> equation A
-----> equation B
substitute equation A in equation B

Solve for XW


Find the value of RX
-----
The answer is C. you are usually only charged interest by your bank when you barrow more than your credit limit.
0.10×16,050+0.28×(134,899−16,050)
=34,882.72