8.3*4 = 33.2 kg. 
Hopefully that is correct
Since Yi Ting weighs 8.3 and her brother is 4 times heavier you would multiply those two numbers to get the answer.
        
             
        
        
        
Answer:
-1
Step-by-step explanation:
Any number less than -2 (ex -3, -4, -5) are less than -2 
 
        
                    
             
        
        
        
Roberto paints 1/6 of a room in 1 hour.
Julio paints1/8 of a room in 1 hour.
Working together, they paint (1/6 + 1/8) = (4/24 + 3/24) = 7/24 room per hour.
The reciprocal unit rate is  24/7 hour per room = <em>3-3/7 hours</em> per room.
        
             
        
        
        
Answer:
Null hypothesis =  
Alternate hypothesis =
Step-by-step explanation:
Given : In a recent semester, the proportion who earned a bachelor's degree within six years was 0.395. 
The president of a certain college believes that the proportion of students who enroll in her institution have a higher completion rate.
To Find : Determine the null and alternative hypotheses.
Solution:
 In a recent semester, the proportion who earned a bachelor's degree within six years was<u> 0.395. </u>
Claim : the proportion of students who enroll in her institution <u>have a higher completion rate.</u>
So,null hypothesis =  
Alternate hypothesis =
 
        
             
        
        
        
Answer:
Each CD cost 12.90 before tax 
Step-by-step explanation:
41.10-2.40=38.7
38.7/3=12.90