Answer:
<h2>There's only one person who has a tie, wears a hat and is not from North.</h2>
Step-by-step explanation:
Givens
- There are 4 people in the group.
- 3 of them have tie.
- 3 of them wear a hat.
- 3 of them are from the North.
- But, just one of them has a tie, wear a hat and is from the Nprth of Mexico City.
From the given information you can notice that only one of them is not from the North, and the one that has all three qualities is from North.
Therefore, there's only one person who has a tie, wears a hat and is not from North.

The absolute value is always non negative.
Step-by-step explanation:
f(x) = x² + 2x - 4
g(x) = 3x + 1
f(g(x)) = f(3x + 1)
f(3x + 1) = [3x + 1]² + 2[3x + 1] - 4
= 9x² + 6x + 1 + 6x + 2 - 4
= 9x² + 12x -1
Step-by-step explanation:
step 1