The population 150 students
The sample is 54% of students
I’m not sure but I hope this helps!
Answer:
there both the same cuz 23 down 23 up
Step-by-step explanation:
25 a² + 20 ab + 4 b²
for formula

find u,v such that: u.v = a
and u+v = b then group according to

=

factor out 5a from :

factor out 2b from :

=

factor out :

=

Refine:

hope this helps!.