If QR=13 , RS =x + 8 , and QS=6x + 16, what is RS

Answer 1

Assuming that Q, R, and S are collinear:

Q-----------------R--------------------------------S

Then the Segment Addition Postulate says:

QR + RS = QS

13 + x+8 = 6x + 16

Solve for x then plug the value into the expression for RS.