Below is an instruction that describes a task. Write a response that appropriately completes the request in German. Please answer in German.

### Instruction:
 Bran's tuition fee is $90. He does a part-time job that pays him $15 per month and he has a scholarship that takes care of 30% of his tuition fee. If he needs to pay his tuition fee within 3 months, how much does Bran still need to pay?


### Response:
 Das Stipendium von Bran zahlt $90 x 0,30 = $<<90*0.3=27>>27 für seine Studiengebühren.
Daher muss er noch $90 - $27 = $<<90-27=63>>63 für seine Studiengebühren bezahlen.
Bran wird in 3 Monaten $15 x 3 = $<<15*3=45>>45 verdienen können.
Daher muss er noch $63 - $45 = $<<63-45=18>>18 bezahlen.