6ft x 3 tables = 18ft
18ft x 4ft = 72ft
Answer: B) 72ft
Hope it helps! :)
Answer:
s=7
p=3s
Step-by-step explanation:
The perimeter is the side length times 3
So the equation would be p=3s
Plug in 21 for p
21=3s
That means s=7
0.18181818181
