I think you meant the two <em>segments</em><em> </em>are identical, if so then:

Answer:
18.75 feet of steel pipe weighs 237 pounds
explanation:
find out how much 1 feet weighs than u can find out how much 18.75 feet.
by doing it like this
158÷ 12.5
=12.64
1 feet equals 12.64 pounds
12.64× 18.75
=237 pounds this is the answer
i do apologize if it wrong
If u are using i as a variable the answer would be i= 3.
The length of the line is 21.
Answer:
Step-by-step explanation: