Question

1. R. S, and T are collinear. S is between R and T. RS=2w + 1, ST = w-1, and RT = 18. Use the information given to determine the length of RS. A. 16 B.5 C. 13 D.6 E. none of these

Answer 1

`2w+1+w-1=18\rightarrow3w=18\rightarrow w=(18)/(3)=6`