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1. |
Which answer shows all the possible subsets of {3, 7}? |
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A. |
{3,7}, |
B. |
{3}, {7}, |
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C. |
{3,7}, {3}, {7}, |
D. |
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Hint |
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2. |
How many possible subsets does {a,b,c} have? |
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A. |
8 |
B. |
12 |
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C. |
9 |
D. |
7 |
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Hint |
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3. |
If A = {5, 6, 7, 8} and B = {8, 9}. what set notation means that 7 belongs to set A but not set B? |
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A. |
7 A, 7 B |
B. |
7A, 7 B |
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C. |
7 A, 7 B |
D. |
7 = A, 7 B |
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Hint |
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4. |
What value is a solution to the equation  |
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A. |
8 |
B. |
-12 |
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C. |
12 |
D. |
-8 |
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Hint |
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5. |
Use mental math to solve  |
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A. |
-20 |
B. |
-12 |
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C. |
-4 |
D. |
4 |
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Hint |
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