Answer:
Three and Nine Hundreths
3 9/100
309%
Explanation:
One way to name 3.09 is Three and Nine Hundredths.
Another way is to separate the integer part from the decimal part as follows: 3 9/100 , where 3 is the integer part and .09 is replaced with its fraction equivalent 9/100.
Other option is to use percentages. To express 3.09 as a percentage just multiply it by 100 as follows: 3.09 *100 = 309%