1.
a)he is correct 24/12=2
b)291/7 if the number is is rational it is factorable
2.
a)4
b)9
c)8
d)9
Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
----> by angle addition postulate
substitute the given values

Answer:
Division
A polynomial divided by a polynomial is not necessary another polynomial. Therefore it is not closed
The answer to this is 2000...
hope this helps and HAGD!