7+2x
You start off with $7 for 1 dog and for every other dog you bring is $2 more
        
             
        
        
        
On your calculator, use the normalcdf() function, enter the Lower Limit, Upper Limit, Mean, and Standard deviation. 
The mean and standard deviation are given to you. You want to find "less than 13.5 seconds", meaning that 13.5 is the maximum "Upper Limit" and 0 would be the Lower Limit because we can pretend 0 second is the minimum. Don't worry about negatives, in this scenario, values like "-5 seconds" are impossible. 
Enter normalcdf(0, 13.5, 13.56, 2.24) in a calculator and the output result is the answer. 
 
        
                    
             
        
        
        
Answer:
B. domain is all integers 0 through 9
Step-by-step explanation:
Domain values area usually plotted along the horizontal axis. In this case, the number of days is the domain of the of the function.
The domain of the function that is plotted on the graph ranges from 0, 1, 2 to 9. 
1, 2, 3 to 9 are all integers. Therefore, we can conclude that the "domain is all integers 0 through 9."
 
        
             
        
        
        
Answer:
i dont get it?
Step-by-step explanation:
yes a right angle is 90^o