Segment AB is 2808 units long. Points X is the midpoint of segment AB. Point R is 3/5 of the way from X to B. Point S is 5/8 of the ways from X to R. How many units long is segment RS?
XB = (2808) / 2 = 1404
XR = ( 3/5) (1404) = 842.4
XS = (5/8) (842.4) = 526.5
RS = 842.4 - 526.5 = 315.9
