Which ordered pair is not a solution of f(x) = 2x + 9?

(3, 14)
(7, 23)
(0, 9)
(2, 13)

Match each polynomial with its factorization.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).