Question 1118477
A farmer is going to divide her 40 acre farm between two crops. Seed for crop A costs $10 per acre. Seed for crop B costs $20 per acre. The farmer can spend at most $500 on seed. If crop B brings in a profit of $40 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant to maximize her profit? 
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____  acres of crop A

____  acres of crop B
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Don't type that.  It's a waste of time, and it's irritating.
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Since the profit per acre is given, the cost of seeds is not relevant.
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crop A = all 40 acres
cost = 40*10 = $400
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---> crop B = 0 acres