Answer:
A. $148 for the first plumber for 4 hours. $256 for the second plumber for 4 hour
B. He did 5 hours
C. 1 hours because the flat rate plus the hourly fee adding it together will equal 64.
Step-by-step explanation:
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The answer is B 78.5 is the the answer
        
                    
             
        
        
        
The sum of 3 and  number a
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Answer:
80.83722
Step-by-step explanation:
−5.47753
/0.06776
=−80.83722
x-80.83722
+80.83722 on both 
x=80.83722