Answer:
7 yards yards per second.
Step-by-step explanation:
you divide 21 by three

and surely you know how much that is.
The definition of a function is that for each input, there is only one output.
Thus, the answer to your question is A, as it is the only answer option that each input has only one output.
In answer choice B, the input -1 has outputs of both -2 and -5.
In answer choice C, the input 4 has outputs of both 3 and 0.
Finally, in answer choice D, the input -4 has outputs of both -4 and 4.
Therefore, answer A is the only function because it is the only option that follows the definition.
Hope this helps! :)
Answer:
On multiplying the equation by 100 we will get 
Step-by-step explanation:
Given data in the question:-

We have to multiply the equation by 100.
Solution:-
We can write 0.03 as 3/100

Hence the answer is 12-x.