20 points!

what percent is equivalent to 12/30?
show work pls

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Stefanie is painting her bedroom. she can paint 2 1/3 square feet in 4/5 of an hour. how many square feet can she paint in one hour?

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each