To multiply two expressions having the same base retain the base and multiply the exponents a. true b. false

For each proportion find the unknown number x 1/5/8=×/15

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

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 $s$?