Answer:
Step-by-step explanation:
4x - 12 = 11 - 3x
Bringing like terms on one side 
4x + 3x = 11 + 12
7x = 23
x = 23/7
 
        
             
        
        
        
Answer:
Step-by-step explanation:
A Parameter is a value that represents a property of a population. This could be the population mean.
A statistic is a value that represents a property of a sample. This could be the sample mean.
In the given scenario, the population is the entire 14 teams. This means that the percentage given is a value representing a property of the population. Therefore, the correct answer is 
C. Parameter, because the data set of all 14 teams is a population.
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
Class and cost per class should be multipled so must be A or B. The amount of money she has should be greater than or equal to her costs or she can't afford it! So B.
 
        
                    
             
        
        
        
You can multiply 2/3 by 2/2 to get 4/6. This means that x=4!!!
Hope this helps :)