Answer:

Step-by-step explanation:
- t  = time (in hours) → this is the independent variable
- s = total area cleaned (in square feet) → this is the dependent variable (as the number of square feet cleaned depends on the number of hours worked)
Therefore, if the rate of cleaning is 8 1/4 square feet per hour, the relationship between s and t is:

 
        
             
        
        
        
Answer:
67.307
Step-by-step explanation:
30×25=750
 100×80=8000
750+8000=8750
8750/130=67.307... total hits divided by total games
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given equation:

Solving for unknown variable 
Adding 8 both sides by additive property of equality.


Squaring both sides to remove the square root.


Adding 5 both sides by additive property of equality.


Dividing both sides by 6 to isolate 

∴ 
 
        
             
        
        
        
Answer:
How many siblings does the average 6th-grade student have? 
Step-by-step explanation: 
In order to know the average, you need to collect all the amounts of siblings 6th grade students have and then you need to add them all together and divide by how much numbers there are and you'll get your average.
 
        
             
        
        
        
Answer:
They give evidence of cultural, religious, or social characteristics of the people