<PRE><B>Question 1054279</B>
The units have to make sense in any problem
You are given:
Each pig eats: [ 2.8 pounds of grain / day ]
Cost of grain: [ $7.25 / pound of grain ]
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 [ $7.25 / pound of grain ] x  [ 2.8 pounds of grain / day ] = [ cost to feed 1 pig for 1 day ]
{{{ 7.25*2.8 = 20.3 }}} 
This is:
$20.30 / 1 pig / 1 day
{{{ 20.3*60 = 1218 }}}
The cost is:
$1,218 / 1 pig / 60 days
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Note that you get the same result if you
feed 60 pigs for 1 day
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The conversion to use is:
1 acre = .00156 square miles
In terms of units:
[ number of acres ] x [ square mi / acre ] = [ square mi ]
{{{ 2067795*.00156 = 3225.76 }}}
3,225.76 square miles





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