Laws of indices right so when you divide in law of indices you’ll always subtract the powers so the first one will be 6 to the power of 6 the second one will be just 6 third one will stay the same and fourth one will be 1/6 to the power of 5 if there isn’t a power you’ll have to add one which is 6-1, so greatest to smallest will be 6 to the power of 6 first so the first one there, the second one will be the last one there 1/6 to the power of 5 third one will be 6 on its own so the second one there the last one will be 6 minus 3 so the third one there