Which set of number may represent the lengths of side lengths? (2,5,9)
(6,4,2)
(6,6,7)
(7,8,1)

State one method by which you can recognize a perfect square trinomial.

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?

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.