Answer:
53
Step-by-step explanation:
Use pemdas
Use P and do (2+2) 
then E 2^3 to get 8
Now you have 9-4/4+8*5
Do M and D To get 9-1+45
Now add and subtract to get your answer
 
        
             
        
        
        
It would take him 5 weeks. why?
7.89*20= $156 per week
156*5 weeks= $780
        
                    
             
        
        
        
Vertical angles are equal, so 
.. 3x +8 = 5x -20
.. 28 = 2x . . . . . . . . add 20-3x
.. 14 = x . . . . . . . . . . divide by 2
Each of the vertical angles is 3*14 +8 = 50°, so the supplementary one is 130°.
.. 5*14 +4y = 130
.. 4y = 60 . . . . . . . . subtract 70
.. y = 15 . . . . . . . . . . divide by 4
The values of interest are
.. x = 14
.. y = 15
        
             
        
        
        
0.008 would equal to 8/1000 while 0.08 would be 8/10. That would mean 0.008 is much smaller than 8/10. You use the idea of base 10.
        
             
        
        
        
plsss go ahead and tell your problem