Maggie says if the expression was 12 divided by 3 to the 2nd power you would divide before simplifying is she right?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!