B is the answer to this question
Fermat's little theorem states that

≡a mod p
If we divide both sides by a, then

≡1 mod p
=>

≡1 mod 17

≡1 mod 17
Rewrite

mod 17 as

mod 17
and apply Fermat's little theorem

mod 17
=>

mod 17
So we conclude that

≡1 mod 17
Easy!
Since the greatest multiple of 9 lesser than 79 is 72, you get a remainder of 7
8 7/9
Answer:
a is 60 b is 48
Step-by-step explanation:and i will get the rest to you when i am done
The answers are as follows,
B
D
C
C
B
Hope this helps.