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9. Select all the set/sets that contains the given set.

Pick the sets that contain the following statement:

1. The set of a integer is a subset of __________.

$the set of whole number W$
$the set of rationals ℚ$
$the set of integers ℤ$
$the set of natural number ℕ$

2. If every element of set

$A$ is also an element of set

$B$ , then

$n(A)$ __________

$n(B)$ .

$\neq$
$\leq$
$\geq$
$=$

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