Answer:
g * $30 = p
Step-by-step explanation:
He earns $30 per gift card.
You multiply the amount of gift cards sold by the money you earn per gift card sold. g, being the gift cards sold. p, being the total pay. 
 
        
             
        
        
        
(2,2) 
(x1+x2)/2, (y1-y2)/2
(-2+6)/2=(2) 
(-2+6)/2=2
        
                    
             
        
        
        
The exponential distribution is:

where 

The probability we want is how likely will a dvd player last more than 8 years, given it has already lasted 5 years
To find this, you use conditional probability.

where A is P(x>8) and B is P(x>5)
To find these probabilities, integrate over the distribution:

Sub into conditional probability formula:

Final Answer: Given a dvd player is more than 5 years old, the probability that it will last another 3 more years is about 54.9%
 
        
        
        
Answer:
i thinks the answer is the fourth, which an= 3-2(n-1)
 
        
             
        
        
        
Answer:
uhhh wheres the question
Step-by-step explanation: