How do ypu write the fact family for 3,6, and 18

After two years, how much has been paid into interest?

What are “like terms”? why can we only add like terms?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.