Answer:4/7
Step-by-step explanation: cross-canceling helps
12/7×1/3
4/7×1/1=4/7
If a=4:
HOW TO FIND THE AREA
A=4*4
A=16
If it's 100:
A=4*100
A=400
The answer is 7 3/4 inches.
I noticed the word "train" in the problem and I knew I had to help you! :)
