1. a. {-2, -1, 0}
2. d. all real numbers (i think)
3. d. all real numbers (i think)
All integer numbers are either even or odd. So, the complement to the set B (to the set of all even integers) is the set of all odd integers, that is D.
The integer number of the form 2x is always even, because it is always divided by 2, so the set C is the empty set.
Numbers 1, 3, 5, 7 are odd, therefore they belong to the set D.
A cause and effect relationship between two variables, A and B, is written A then B, or in formal logic: A => B (A implies B).
Justin keeps 3 marbles. Each friend gets 4 marbles.
