Answer:
immune system
Step-by-step explanation:
I don't know exactly but I think the immune system
Answer:
Third option:
and 
Step-by-step explanation:
Given:

For a modulus function, if
, then,

Here,
, 
∴ 
Therefore, the third option is the correct answer as the graph has
values as -2 and 2
Answer:
60
Step-by-step explanation:
(20x15)0.5
The answer is D because is you add a one under the 9 you get 9/1 x 2/3 and you can just multiply straight away and get 18/3 but if you need to simplify more you get 6
Its a 50/50 chance because a coin only has 2 side