The perimeters of the square and the regular pentagon are equal. A square with side lengths of 3x + 3. A pentagon with side lengths of x + 8.

What is the perimeter of each polygon?
12
15
42
60

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?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Evaluate cos2θ for cosθ = square root of 3/2