Answer:
The solution to the system of equations is

Explanation:
Giving the system of equations:

To solve this, we need to first of all eliminate one variable from any two of the equations.
Subtracting (2) from twice of (1), we have:

Subtracting (3) from 3 times (1), we have

From (4) and (5), we can solve for y and z.
Subtract 5 times (5) from 3 times (4)

Using the value of z obtained in (5), we have

Using the values obtained for y and z in (1), we have
 
 
        
             
        
        
        
If you do .41x122 you get 50
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
6. 13/hour
7. R=income/hours worked so 221/17=13. Not sure if that is what they are asking for.
8. Not sure. Is it $13/hour?
9. still guessing but the constant is $13/hour so to determine how many hours need to be worked to reach $1000, you divide. $1000/13=Approximately 77 hours. 
 
        
             
        
        
        
9514 1404 393
Answer:
   not similar
Step-by-step explanation:
Similar polygons have all corresponding angles congruent, and corresponding sides proportional.
The sides lengths guarantee the polygons are parallelograms, so one pair of angles being congruent is sufficient to ensure that all corresponding angles are congruent.
The ratio of side lengths in the left polygon is 13/8, and the ratio of side lengths in the right polygon is 5.2/2.4 = 13/6. These are different ratios, so the corresponding sides are NOT proportional.
The figures are NOT SIMILAR.