Answer :

So, 5 apples costs $2.00
5 goes into 15, 3 times ( 5 x ? = 15 ...   5 x 3 = 15)
So now since we multiplied 5 by 3, we have to do the same thing to the $2.00
So, $2.00 x 3 = $6.00
The answer is $6.00!!!
Hope this helped!