Find the ratio of m to n.
4n = 2m

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?