Given the two sets, which statement is true?

a = {1, 2}
b = {1, 2, 3, 4}

1. b⊂a
2. 3⊂a
3. 4⊂a
4. a⊂b
5. none of the above

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

the correct answer to your question is a. 4^4

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