Answer:
5/6
Step-by-step explanation:
 
        
             
        
        
        
Answer:
b = 29
Step-by-step explanation:
C x D = A x B
15(11x - 91) = 7(2x + 10)
165x - 1365 = 14x + 70
add 1365 to both sides of the equation:
165x = 14x + 1435
subtract 14x from both sides:
151x = 1435
divide both sides by 151:
x = 9.5
b = 2(9.5) + 10 = 29
 
        
             
        
        
        
15X=12X+12
Subtract 12X
3X=12
X=4
        
             
        
        
        
Answer: D
Step-by-step explanation: 20,20