Answer:
Roberta earns $164.4 on an 8 hr shift.
Step-by-step explanation:
In one hour  Roberta makes $9
So if she works for 8 hours she will be making
=> ( 9 X 8)$
=>72$
Also she earns a commission of 10.5% on selling a jewellery  worth $880
So 10.5% of 880 is
=> 
=>  
=> 92.4
Hence  Roberta will be earning a total amount of 
(72+ 92.4)
=>$164.4
 
        
             
        
        
        
Answer: 130
In order to solve for <4, you need to know that supplementary angles add up to 180°. 
<3 = 50
180 - 50
130
**For future questions**
1. The sum of the interior angles of a triangle is 180°
2. Alternate interior angles are congruent
3. The exterior angle of a triangle is the sum of the nonadjacent interior angles
See attachment below. 
 
        
        
        
5x5 - 10x = 0 
5x5 - 10x = 5x • (x4 - 2)
        
             
        
        
        
Answer:
<h2>x = 2</h2>
Step-by-step explanation:
 <em>divide both sides by (-2)</em>
          <em>divide both sides by (-2)</em>

 <em>subtract 3 from both sides</em>
            <em>subtract 3 from both sides</em>


 
        
                    
             
        
        
        
Answer:
-47/100
Step-by-step explanation: