Answer:
18.96 / 12 = 1.58
1.58 = the cost of 1 rose
1.58 X 5 = $7.9
 
        
                    
             
        
        
        
A line perpendicular means that the slope is the negative reciprocal of the slope given. Since m=3 in the given equation, the slope in the perpendicular line has to be m = -1/3. The y-intercept can be any number. 
So a line perpendicular would be y = -1/3x + b
Since you can plug anything into b, you can get many different answers. For example, y = -1/3x + 7 or y = -1/3x - 2
        
             
        
        
        
Answer:
80 cm^3 (cm cubed)
Step-by-step explanation:
5 x 2 x 8
 
        
             
        
        
        
Answer:
Step-by-step explanation:
  
18<n
 
        
             
        
        
        
Answer:
5 gallons of water must be added.
10 gallons to start with
adding 'x' gallons of water      final volume = 10 + x
.9 (10) = amount of vinegar
.1(10) = amount of water
amount of vinegar before and after water addition is constant
.9(10) = .6(10+x)  
9 = 6 + .6x
3 = .6x
x = 5 gallons of water to be added
(i truly hope i helped you