First we'll substitute
with 

Then we can separate this.

Then we'll solve this.



Then we'll plug in to find the extraneous solutions (if any)

Answer:
on the 5th week they would both have the same amount of money they would both have a total of 85$
Step-by-step explanation:
Answer:
Can you post 4.3? We need more information to answer this.
Step-by-step explanation:
It is given in the question that
The school is 625 meters far from Alex house. It took him 15 minutes to go from home to school, and run back to home in 10 minutes.
Total distance is 625 meters and total time taken is

Average speed is

