Answer:
For part 1- y=50x+75 For part 2- y=325
Step-by-step explanation:
the cost is increasing 50 for every hour
there is a flat rate of 75 to answer a house call
y=50x+75
y=50(5)+75
y=250+75
y=325
 
        
             
        
        
        
Answer:
The test statistics is    
   
Step-by-step explanation:
From the question we are told that 
    The sample size is  n  =  100 
   The null hypothesis  is  
    The alternative hypothesis is  
    The sample mean is  
     The standard deviation is  
     The level of significance is  
Generally the test statistics is mathematically represented as 
         
=>      
=>       
     
 
        
             
        
        
        
Answer:
14302 miles
Step-by-step explanation:
from alaska to chicago it is 2861 mi. 
2861 times 5
that divdied by three is 14302
 
        
             
        
        
        
45 packages are shipped in one hour. I divided 315 by 7
        
                    
             
        
        
        
Answer:
x = -4
Step-by-step explanation:
<u>Step 1:  Subtract 2x from both sides</u>
2x - 2 - 2x = 4x + 6 - 2x
<em>-2 = 2x + 6</em>
<em />
<u>Step 2:  Subtract 6 from both sides</u>
-2 - 6 = 2x + 6 - 6
<em>-8 = 2x</em>
<em />
<u>Step 3:  Divide both sides by 2</u>
-8 / 2 = 2x / 2
<em>-4 = x</em>
<em />
Answer:  x = -4