Sandra has 18 bags of peanuts to hand out to 9 friends. how do i draw a bar diagram to solve how many peanuts she will give each friend?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Ineed to know the answer to this algebra question.

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left