danny is on a vacation ikn brazil. he will fly home with one bag, but if the weight of the bag is more than 25kg, he must pay a fee. Danny knows his bag weighted 21.9 kg on the way to brazil, and he plans to buy gifts for his friends and parents. On the way back, his bag will hold everything he brought to Brazil and the gifts he brought. If he doesn't want to pay a fee, how much can the gifts weight