Answer:
Max exercises 13 hours a week, and Sasha 7.
Step-by-step explanation:
To find the number of hours each of them exercises during the week, we solve the system of equations.
In the second equation:

Replacing in the first equation:





So Sasha exercises 7 hours per week.
Max:



Max exercises 13 hours a week.
Answer:
x >= 0 & y<0
x >= 0 means that x is non-negative
y<0 means that y is negative
The answer to this is quite simple my friend.
So if you were 9, purely turning on November 9th of 2015 at a undisclosed time, you would've been born in November of 2006. Currently, now of October 16, 2021, you would be:
Add:
4 + 10 + 1 = 15
So you would be 15 years old.
Hope this helps, currently it's 10/17/2021 for me and 1:56 am (EST).
Have a nice morning, night, dusk etc.
-ROR