Feedback? Exercise 2.1.6: Which statements are true for all sets?
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Which of the following statements are always true for any two sets A and B?
(a)
If ASB, then Ac B.
(b)
If Ac B, then ASB.
(C)
If A = B, then ASB.
(d)
If A = B, then ACB.
(e)
If Ac B, then AB
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c

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

bull

step-by-step explanation: