Round each number to 1 significant number then estimate "763x42"

82

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?

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles