Answer:
it will take 10 weeks for him to pay his brother completly
Step-by-step explanation:
Answer:
Step-by-step explanation:
17) B. They are adding 2 to both sides.
18) A. A segment is equal to itself.
19) D. They are multiplying both sides by 2.
20) C. They are simply swapping the left and right hand sides of the equation
Answer:
3).

4).
If it was by 10, k = 3 by 10
k = 30
5).

Equivalent systems = same line = infinite solutions