Riley's age = r
Riley's brother's age = r/4
If Riley was 11 five years ago, Riley is currently 11 + 5 years old, or 16 years old.
Now we just need to use r/4 to find Riley's brother's age:
16 /4 = 4
Riley's brother is 4 years old.
Hope this helps!
That seems so hard, sending prayers and brain cells to you.
I believe it’s 11n -4 -40
I am a beautiful person who can help you with the new one of those who are interested