Question 99623
First thing is to define everyone's age in terms of x
So lets do that
We will call Bella's age x so
Bella's age = x
Ella is twice Bella's age so
Ella's age = 2x
Stella is three times bella's age so
Stella's age = 3x
Last we are told that the difference between Stella's and Bella's age is 8 so
{{{3x-x=8}}}
now just solve for x
{{{3x-x=8}}}
{{{2x=8}}}   combine like terms
{{{2x=8}}}   divide both sides by 2
{{{x=4}}}
Now that we have found Bella's age (x) we can use that to find the other girls ages.
I'll leave that to you.
hope this helped.