Answer:
hertz (Hz)
Explanation:
The SI unit for frequency is the hertz (Hz). One hertz is the same as one cycle per second.
I want to say 5 but I'm not sure
Greetings!

Therfore to find the cost for unit, we must divide the cost by:

Simplify.

Convert mixed number into improper fraction.

Simplify.


Convert back to mixed number.

The unit cost for a yard is
$4.
Hope this helps.
-Benjamin