1. Choose the correct solution in roster form.
N is the set of natural numbers that are factors of 12.
A.{1, 2, 3, 4, 6}
B.{1, 2, 3, 4, 6, 12}
C.{1, 2, 3, 4, 5, 6, 8, 12} *this is my answer
D.{1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12}
2. Write the solution to the inequality in set-builder notation.
5r + 8 < 63
A.{r|r<11}
B.{r|r<15}
C.{r|r<71}
D.{r|r<8}
3. Suppose U = {1, 2, 3, 4, 5, 6, 7, 8} is the universal set and P={2, 4, 6, 8}. What is P?
A.{2, 4, 6, 8}
B.{1, 2, 3, 4, 5, 6, 7, 8}
C.{1, 3, 5, 7}
D.{1, 3, 5, 7, 8}
For problems 4-5, use the following information.
Suppose U = {0, 1, 2, 3, 4, 5, 6}, A= {2, 4, 6} and B = {1, 2, 3}. Tell whether each statement is true or false.
4. A U
A.true
B.false
5. B A
A.true
B.false
