Answer:
15
Step-by-step explanation:
By the diagram, you can see the sum of segment AB and segment BC is segment AC. Adding the given expressions for AB and B is  . Simplifying the equation
. Simplifying the equation  , gives
, gives  . Substituting
. Substituting  in the equation for segment AC gives 15.
 in the equation for segment AC gives 15.
 
        
             
        
        
        
Let's say Bailey takes "b" days to paint it.
and Andrew takes "a" days to paint the same house.
now, Andrew is 6 times faster than Bailey, therefore, if Andrew takes "a" days to do it, Bailey takes then "6a" days, or b = 6a.
now, the year they worked together, they finished it in 7 days.
so, after 1 day then, they have only done 1/7 of the whole work.
and Andrew for one day, has done 1/a of the house, whilst Bailey has done 1/b of the house or 1/(6a).

 
 
        
        
        
Rewrite using the formula for the standard form
The answer is y-4x^2 + 12x + 9
 
        
                    
             
        
        
        
Answer:2.50 more dollars then Marc
Step-by-step explanation: