Answer:
600?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D. 16
Step-by-step explanation:
Average rate of change: 
Simply plug in 6 for <em>a</em> and 2 for <em>b</em>
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Answer:
x=-1
Step-by-step explanation:
so 3-2 is 1 right so what humber + 2 is 1 well -1 becasue -1 + 1 is 0 and plus 2 would be 1 so its -1 (or x= -1). Hope this helped!
 
        
             
        
        
        
Okay this is how I would figure this out:
I would take 9 divided by 3 and get 3, so he can tile abut 3 square ft. in 15 minutes. 
Then, I would multiply 3 by 4 because there are 4 15 in an hour. I would get 12.
So it takes Jakob 1 hour to tile 12 square feet. 
Your answer is: He can tile about 12 square feet per hour.
Hope this helped :)