Mike wants to build a pool in his backyard with a diameter of 8 feet. (C=π d and A=π rˣ)

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

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 $s$?

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?