Umberto's mother expects an increase 5% increase in her current annual salary of $36,000. What would her new annual salary be?

36,000 * 1.05 = ?

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To find Umberto's mother's new annual salary after a 5% increase, you can follow these steps:

1. Convert the 5% increase to decimal form by dividing it by 100: 5% = 5/100 = 0.05.
2. Multiply the current annual salary of $36,000 by the decimal representation of the increase: $36,000 * 0.05 = $1,800.
3. Add the calculated increase to the current annual salary: $36,000 + $1,800 = $37,800.

Therefore, Umberto's mother's new annual salary would be $37,800.