Answer:
Option D is correct.
and
Step-by-step explanation:
Floor function states that the greatest integer that is less than or equal to x.
It is represented by: 
Ceiling function states that the least integer that is greater than or equal to x.
It is represented by: 
As per the statement:-
Kareem wrote the values show below:
,
,
and
.
by definition:
= 4
= 2
=3
= 4
From the given options only pair which is equivalent is:
and
Answer:
Stephen has 9 trees
Alice has 21 trees
Step-by-step explanation:
<u>At the beginning:</u>
Stephen = x trees
Alice = x + 12 trees
<u>At the end:</u>
Alice = (x + 12) - 4 trees
Stephen = x + 10 trees
Total = 36
Then

Stephen - 9 trees
Alice - 9 + 12 = 21 trees
The correct answer is B. Supplementary
That is the basic definition of what supplementary angles are and can be found in any textbook.
I did the work and it's D. i believe