Answer:
Use order of operation 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
226.19
Step-by-step explanation:
area of a cylinder is 2 times pi times radius time height plus 2 times pi times radius squared 
radius=6/2=3
height=9
substitute in your values and get 226.19cm squared 
 
        
                    
             
        
        
        
Step-by-step explanation:
r-5r-6s+8s-15
-4r+2s-15
= 2s-4r-15
 
        
             
        
        
        
240 mg daily
This can be shown if you do 3 milligrams per kilogram the person weighs.
So if the person weighs 80 kilograms, you do 80*3 to get 240 milligrams.
 
        
             
        
        
        
Answer:
C.1/6
Step-by-step explanation:
Initially the box has four $1 and six $5 bills. The probability of selecting a $5 bill in the first trial would be given as;
(number of $5 bills) / (total number of bills)
= (6)/(4+6) = 3/5
If in the first attempt we actually pick a $5 bill, the number of $5 bills will reduce by one to 5. Now, the probability of picking a $5 bill in the second attempt will be given as;
(new number of $5 bills) / (new total number of bills)
= (5)/(4+5) = 5/9
The new number of $5 bills will now be; 6 - 2 = 4 since we have already picked 2 without replacing them.
Now, the probability of picking a $5 bill in the third attempt will be given as;
(new number of $5 bills) / (new total number of bills)
= (4)/(4+4) = 1/2
Since the three attempts are independent, the probability of picking  all three $5 bills is;
3/5 * 5/9 * 1/2 = 1/6