Answer:
65
Step-by-step explanation:
 
        
             
        
        
        
log was used calculate big numbers before calculators
log is a re-arranged way to show a number with an exponent
example
log₂ 16 = 4 means 2^4 = 16
logx(Z) = y means x^y=Z
log(x-6)/log(2) + log(x)/log(2) = 4
(log(x-6)+ log(x))/log(2) = 4
(log(x-6)+ log(x)) = 4log(2)
(log(x-6)x) = log(16)
x=8
 
        
             
        
        
        
Answer:
the mean is 83.6
Step-by-step explanation:
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   h ≤ 6 2/3
Step-by-step explanation:
The inequality is presumed to be ...
   15h +40 ≤ 140
   15h ≤ 100
   h ≤ 6 2/3
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The graph shows h ≥ 0, because the inequality is only reasonable for h ≥ 0.