Plz answer this question u get 47 points :D

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?

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)