Answer:
C is the answer
Step-by-step explanation:
The Y intercept of the graphed function would be,
(0,-9) because the graph (which is a function) intercepts on (0,-9) therefore the function's y-intercept is,
b= -9
 
        
                    
             
        
        
        
Okay so subtract 50 from both sides and you would get 360=90x and then divide each side by 90 and you would get x= 4 so it took 4 hours
        
                    
             
        
        
        
Answer:
Your answer is: Undefined 
Use the slope formula to find the slope  m
.
Step-by-step explanation:
Hope this helped : )
 
        
             
        
        
        
No because 21=(11)+9
21 can’t equal to 20
        
             
        
        
        
Answer:

13 glue sticks cost $25.22.
Step-by-step explanation:
4 blue sticks cost $7.76, this means that one glue stick costs 
$7.76/4 = $1.94.
Let  be the cost of the glue sticks, and
 be the cost of the glue sticks, and  be the number of glue sticks; then
 be the number of glue sticks; then

We can use this equation to find the cost of 13 glue sticks; we just put  into our equation and it gives:
 into our equation and it gives:

So 13 glue sticks cost $25.22.