Give the step-by-step reasoning process and then the final answer. Stella's antique shop has 3 dolls, 2 clocks and 5 glasses for sale. She sells the dolls for $5 each. The clocks are priced at $15 each. The glasses are priced at $4 each. If she spent $40 to buy everything and she sells all of her merchandise, how much profit will she make?
The dolls will sell for 3 * $5 = $15. The clocks will bring in 2 * $15 = $30. The glasses will sell for 5 * $4 = $20. In total, she will bring in $15 + $30 + $20 = $65. Her total profit will be $65 - $40 = $25.
The final answer: 25.