Answer:
The scale factor is 1/18.
Explanation:
Nicole's best friend designed her campaign poster, which measured 3 feet by 2 feet.
We have : 1 feet = 12 inches 
2 feet = 24 inches
3 feet = 36 inches 
Nicole likes the poster so much, she reproduced the artwork on regular buttons that measured 2 inches by 1 1/3 inches or 1.3333 inches. 
So, scale factor is = 

And 
