Answer: Her new salary would be $2.48
Explanation:
1. take 10% of the current salary to figure how much the raise is. 
 2.25 x 0.1 = 0.225
2. round that number to the nearest hundredth (money only goes to the hundredths) 
 0.225 --> 0.23 
3. now add that number back to the original salary to find the new salary
 0.23 + 2.25 = 2.48 
Final answer: the new salary is $2.48