For this case, the first thing we must do is define a variable.
 We have then:
 x: number of weeks
 y: amount of cereal that Melanie eats
 We now write the function that models the problem: 

 Then, for 5 weeks we have: 
 Answer:
 Answer:
 A model that best represents the number of pounds of cereal she eats is:
  For 5 weeks we have:
 For 5 weeks we have:
  
 
        
        
        
Answer:
which is the volume of the water
it implies , volume=l*b*h
 50m*25m*2m
 2500m'3
 
        
                    
             
        
        
        
Answer:
x = 14
Step-by-step explanation:
5x - 40 = 30
+40       +40
5x   = 70
divide by 5 on both sides
x= 14
 
        
             
        
        
        
Answer:
x=50
Step-by-step explanation:
1) Rewrite the problem as an equation: (x will be "a number")
9x+6=456
2) Subtract 6 from both sides:
9x=450
3) Divide both sides by 9:
x=50
 
        
             
        
        
        
5 - 2 times 38 is -71.
Have a nice day