Answer:
c
Step-by-step explanation:
20 feet
1st piece = x
2nd piece = 2x
3rd piece = 6x
x+2x+6x=180
9x=180
x=20
so the first piece is 20 feet, the second is 40, and the third is 120.
hope it helps and u understand
check the steps in picture attached
7
All you have to do to solve this is subtract 18 from 25
