Step-by-step explanation:
D,C,B
Answer:
1- 
2- 1
3- -2
Step-by-step explanation:
1-
Add the numbers : 
Reduce the fraction with 5 : 
Solution : 
2-
Calculate the difference: 
Divide: 1
Solution: 1
3-
Subtract the numbers: 
Reduce the fraction : -2
Solution: -2
Answer:
Second option is the correct answer.
Step-by-step explanation:

Answer:
The answer to this question is 9
Step-by-step explanation:
Each wire is now 4 meters long.