Answer:
2.c 3.a 4.b 
Step-by-step explanation:
just looked at it carefully
 
        
                    
             
        
        
        
Just switch the x and the 3
        
                    
             
        
        
        
Answer:
2.28%
Step-by-step explanation:
As this is normally distributed, we can use z scores to find the percentage. 
First, find the z-score for 148. 
The z-score that you get is:
(148-160)/2=2
As we see that z=2, we can use a calculator or a z-score chart to find the percentage less than a z score of 2.
I used my chart and found: 2.28%
 
        
                    
             
        
        
        
Answer:
$38.16
Step-by-step explanation:
8% of $48 is $3.84 so we subtract $48-$3.84=$44.16. Because of the coupon we then remove $6. $44.16-$6=$38.16
 
        
                    
             
        
        
        
the answer is D-n is greater then or equal to nine. 
because the red dot starts on nine and goes up its greater than nine and because its on nine its also going to equal it. I had a problem getting the signs messed up when I learned it but I remember the sign always eats the greater number. I hope this answer could help and I'm sorry if the answer is incorrect.