(4ab - 9a - 8) - (7ab - 1) 
distribute (multiply) the negative through the parenthesis 
<span>(4ab - 9a - 8) - 7ab + 1 
No need for other parenthesis because nothing in front or to combine inside. </span>
<span>4ab - 9a - 8 - 7ab + 1
</span>
Combine like terms
- 3ab - 9a - 7 
        
             
        
        
        
Answer:
Let v = ml of 100% vinegar
Then 150-v = ml of dressing
 
v  + .05(150-v) = .24(150)
v + 7.5 - .05v = 36
.95v = 28.5
v = 28.5/.95
v = 30 ml of vinegar
 
dressing = 150-30 = 120 ml
Step-by-step explanation:
 
        
             
        
        
        
Answer:
slope = 2
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (0, 8) and (x₂, y₂ ) = (- 4, 0)
m =  =
 =  = 2
 = 2