#### Answer

The price of the ribbon per one inch is 0.06 dollars.

#### Work Step by Step

A decorative ribbon costs 2.16 dollars a yard. To find the price per one inch, we must first convert yards to inches because we have the price in yards.
The ratio which converts yards to inches is $\frac{1\ yard}{36\ inches}$.
So, $\frac{2.16\ dollars}{yard}$ $\times$ $\frac{1\ yard}{36\ inches}$ = 2.16 dollars for 36 inches
So, the price of 36 inches is 2.16 dollars.
To find the price per one inch, we divide 2.16 by 36
So, $\frac{2.16\ dollars}{36\ inches}$ = 0.06 dollar per inch.
The price of the ribbon per one inch is 0.06 dollars.