Answer: -13w - 7
Step-by-step explanation:
-6w + (-8) + 1 + (-7w)
Combine the like terms
-8 + 1 = -7
-6w + (-7) + (-7w)
-6w + (-7w) = -13w
-13w + (-7)
However, because adding a negative number is the same as subtracting the number as a positive, you can just make it -13w - 7
 
        
             
        
        
        
Answer:
108 ft
Correct me, if I am wrong :)
have a great day!
Thanks!
 
        
                    
             
        
        
        
Answer:
.
Step-by-step explanation:
 
        
                    
             
        
        
        
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The empirical rule states that in a normal distribution, 
68% of data is within 1 std deviation of the mean
95%  of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean
In this case 95% of the cases would be within two std deviations of the mean 
    mean - 8         and    mean + 8
     72   - 8 = 64   and    72 + 8 = 80 
then 95% of the scores are between  64% and 80% on the test.