Answer:
75%
Step-by-step explanation:
A percent is a value out of 100.
Change the fraction 
to an equivalent fraction with the denominator equal to 100.
× 
= 
This fraction represents a percent.
= 75%
-.x+7
-x+7=0
-x=-7
x=7...
Not too sure because of the way you wrote the question but this is the interpretation i gave it.
Answer:
Not a function
Step-by-step explanation:
If it was a function there should be only one values for every x, in this case there is two values for x=0. Doesn't pass the vertical test.
Answer:
0
Step-by-step explanation:
They are the same set
