Question 159181
Manuel’s lunch cart sells burritos and chili. To stay in business, 
Manuel must sell at least 10 orders of chili and 30 burritos per day. 
c >= 10
b >= 30
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Because of limited space, not more than 40 orders of chili or 70 burritos can be made.
10 <= c <= 40 (This defines the domain of the function)
30 <= b <= 70 (This defines the range of the function)
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The total number of orders cannot exceed 90. 
b + c <= 90
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If Manuel decides to sell 30 burritos, what is the greatest and fewest number of chili orders he can sell?
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b = 30
Since b+c <=90, 30 + c <= 90; c <= 60 (greatest number of chili orders)
Since 10 <= c <=40, c >= 10 (least number of chili orders)
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Cheers,
Stan H.