Which equation shows a proportional relationship? A) y= 3x - 1
B) y= 5x
C) y= 3x^2
D) y= 1/5x + 10

Can someone check my answer? you : )

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

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 $s$?