Question 1179843
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Write inequality for total food

    p + c >= 10 pounds    (1)    (total food)



Write inequality for money to be in budget

    0.75*p + 1*c <= 30    dollars.



The amount of time is 

    15p + 9c  minutes,


and you want to minimize it.


There are also inequalities of non-negativity

    p >= 0,  c >= 0.


So, I wrote the inequalities you were asked for.


    +--------------------------------------------+
    |   The solution to the problem is OBVIOUS.  |
    +--------------------------------------------+


If you want minimize your time, prepare 10 pounds of corn
and do not touch potatoes.
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