Suppose A ={2, 5, 7, 9, 13, 25, 26}. True or False:

{1,2,3}⊆A

Step-by-step explanation:

n(A) is the number of elements is A, sometimes written |A|.  I count 7.  n(A)=7

13 is among the elements of A, so 13 ∈ A  is TRUE

26 is among the elements of A, so 26 ∉ A   is FALSE

10 isn't in A, so 10 ∉ A  is TRUE

PLS MARK BRAINLEST

A primary source for the article would be interviewing one of the school's board members and quote them in the article. A secondary source would be to analyze the students at the school and what they're wearing. After analyzing what the students wear, you can interpret why the board made the decision to enforce a dress code. These sources would be good to use because the article would include primary quotes as well as a reason why the school board may be enforcing a dress code.

Explanation:

I just submitted it on edge