Answer:
BC = 50
Step-by-step explanation:
BC = AD in a parallelogram
4x-10 = 3x+5
Subtract 3x from each side
4x-3x-10 = 3x-3x+5
x-10 = 5
Add 10 to each side
x-10+10 = 5+10
x = 15
BC = 4x-10 = 4*15-10 = 60-10 = 50
Total = 21 feet
if each is 3 feet
21/3 = 7
Therefore, there are 7 sections
Answer: 4 1/2 - 1 11/12 = 2 1/3 but in decimal form 2.3
