My question is: Gabby is saving money to buy a new makeup set. The makeup set costs $65 and she already has $35. Gabby’s mom gives her an additional $20. How much money does Gabby need to buy the set? Your thoughts:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Deduct the amount saved from the total cost of the set. $65 - $35 = $30. Deduct the amount of money Gabby received from her mom. $30 - $20 = $10. The final answer: 10.