Karen must choose a number between and that is a multiple of 3,4,9. Write all the numbers that she could choose. If there is more than one number, separate them with commas.

You seem to have omitted the range of numbers from which Karen must choose.

To find all the numbers between 1 and 100 that are multiples of 3, 4, and 9, we can use the concept of finding the least common multiple (LCM) of these three numbers.

The LCM of 3, 4, and 9 is 36. This means that any multiple of 3, 4, and 9 will also be a multiple of 36.

Now, let's list the numbers between 1 and 100 that are multiples of 36:

36, 72

Therefore, Karen could choose either 36 or 72 as her number since they are the only numbers between 1 and 100 that are multiples of 3, 4, and 9.