Answer:
4x=80 and 5x=100
Step-by-step explanation:
4x+5x=180
9x=180
1/9 (9x)=1/9 (180)
x=20
4(20)=80
5(20)=100
This would be the term referred to as a line segment. I hope this helps!
Answer:
Length of fencing: 4, 6, 7, 9, 10
Cost: 36, 54, 63, 81, 90