A toy store orders jigsaw puzzles for 3.05 and sells tham for 4.95 what is the percent of markup a) 19%
b)38.5%
c)61.2%
d)62.3%

Really need on these. i have no idea what to do

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m