Nina ran 12 4/5 laps in 1/4 of an hour. At this rate, how many laps could she run in an hour?

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?

1. are the triangles similar and if so why? what is the value of x? show your work.

What is the point-slope equation of a line with slope -5 that contains the point (6,3)