Can someone me solve this i need to see if i got it correct

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?

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?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²