4 : 8
x 9 => 36 : 72  <=== equivalent
 
        
                    
             
        
        
        
Answer:
give me more information on this 
 
        
             
        
        
        
Answer:
- Annie- 17 hours, Brian- 3 hours
Step-by-step explanation:
Let the number of hours Annie travelled be a, and same of Brian be b
<u>Then we have</u>
<u>Substituting a in the first equation</u>
- 5b + 2 + b = 20
- 6b = 20 - 2
- 6b = 18
- b = 3
<u>Then finding a</u>
<u>So the answer is:</u>
- Annie- 17 hours, Brian- 3 hours
 
        
             
        
        
        
Answer:
b equals 20
Step-by-step explanation:
b - 13 = 7
7 + 13 = b
7 + 13 = 20
 
        
             
        
        
        
A.)y=2/3x-7 is the answer