What is the final amount if 1230 is increased by 15% followed by a 17% decrease? Give your answer rounded to 2 DP.

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.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3