Respuesta :

sqdancefan
As always, the "unit rate" can be written two ways. You have not specified which one you want.

.. (30 lb)/(1/3 ac) = 90 lb/ac

.. (1/3 ac)/(30 lb) = (1/90) ac/lb
phopkins

Answer: it c 90 pound per acre

Step-by-step explanation: 30 times 3 is 90