Answer:

Step-by-step explanation:
Given: 
To find: value of x and y
Solution:

From equation (i) and (ii),

Put
in (i)

Divide 4 on each side
Answer: X<-3
Answer: 6 1/6
Step-by-step explanation:
1) First divide 10 1/2 = 5 1/4.
2) Then, since we divide 10 1/2 then we need to divide 12 1/3.
3) 12 1/3 divided by 2 = 6 1/6.
And there is your answer; 6 1/6
The independent variable (the one they want) is the # of hours worked, since that determines the price.
All the other answers contain information not included in the problem
The answer to your problem is x=3