Respuesta :
30-30-15+10 Henry starts with 30, loses 10, and then another 15. Than his sister gives him 10.
Henry has $30
pays for admission -$10
----------
Total = $ 20
Now Henry has $20
but now -$15 falls from his wallet
--------- So now he is having $5
And his sister lends him + $10
--------
So now he is having $15
pays for admission -$10
----------
Total = $ 20
Now Henry has $20
but now -$15 falls from his wallet
--------- So now he is having $5
And his sister lends him + $10
--------
So now he is having $15