The explicit formula for a sequence is
an=−2+3/2(n−1)
What is the 21st term of the sequence?

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?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2