Answer:
Firstly 
f(x)=3x-2=y then
Interchanging x and y we get 
x=3y-2
x+2=3y
y=(x+2)/3
f-1(x)=(x+2)/3
f-1(13)=(13+2)/3
f-1(13)=5
 
        
             
        
        
        
Answer: Yes
Step-by-step explanation:
It is a relation because each person will most likely have a different name and you can have plenty of the same outputs just as long as the input doesn't repeat at all.
 
        
             
        
        
        
Answer:
The correct option is;
(B) Yes, because sampling distributions of population proportions are modeled with a normal model.
Step-by-step explanation:
Here we have the condition for normality being that where we have a population with a given mean and standard deviation, while a sufficiently large sample is drawn from the population while being replaced, the distribution of the sample mean p will be distributed normally according to central limit theorem.
 
        
             
        
        
        
Answer:
Each poet reads for exactly 15 minutes.
Step-by-step explanation:
If it should run for 90 minutes, and there is 6 poets, therefore I'm pretty sure you divide 90 by 6, which is 15.
 
        
                    
             
        
        
        
Well, you transform the standard form equation into slope-intercept form (y=mx+b), since you can only graph it using this form.
First of all, the layout of the equation is 

So, in this case, A is 2, B is 5, and C is 25.
Now, to put it into slope intercept form, you either use the formula to change it and solve it:

Or you can just solve for y:

In addition, I attached what the graph looks like.
Hope this helps!