How to divide 134 800 by 240 using long method?​

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

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 $s$?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?