Answer:
Step-by-step explanation:
  x      2x             3x + 1
|---------|-------------------|---------------------------|
|<-------------------- 85 in ------------------------>|
85 = x + 2x + 3x + 1
85 - 1 = 6x
x = 84 / 6
x = 14
1st piece          = 14 in
2nd piece = 2(14) Â Â = 28 in
3rd piece = 3(14) + 1 = 43 in
          ----------------------------
total              =  85 in