Answer:

I hope that is useful for you :)
Answer:
Domain is that interval in which the function is defined ....
So this function is defined everywhere except 4 and 7 ,
option D is correct....
Answer: As a decimal it would be .136. You can write it as a decimal by dividing by 100 as you would need to get this total by multiplying by 100. Just reverse the steps into making a percentage.
Example: 70 out of 200.
You'd do 70 divided by 200 and get .35.
After, you would multiply by 100 to turn it into a percentage.
If you want to turn it into a decimal divide by 100.