Respuesta :

DreamKidd
$25 because when you lose the ten it's the same as 5 - 10 and the answer to that is 5 and then you add 20 to the 5 and you get 25 so that's how that goes.
ZhanyaW
$25
15-10=5
5+20=25 . unless this is one of those 'looks simple but really isn't' type of questions.