#### Answer

The price of the trim per yard would be 12.9 dollars.

#### Work Step by Step

We need to multiply the price by the ratio that converts inches to yards.
The ratio that converts inches to yards is $\frac{12\ inches}{1\ foot}$ $\times$ $\frac{3\ feet}{1\ yard}$ = $\frac{36\ inches}{1\ yard}$
So, $\frac{8.60\ dollars}{24\ inches}$ $\times$ $\frac{36\ inches}{1\ yard}$ =
$\frac{8.60\ dollars\ \times\ 36}{24\ yard}$ =
$\frac{309.6\ dollars}{24\ yards}$ =
$\frac{12.9\ dollars}{yard}$ = 12.9 dollars per yard
The price of the trim per yard would be 12.9 dollars.