What value of b makes this equation true? -2b + 3 = b - 9

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

What is the absolute value of the complex number -4-sqrt2i

Answer for 10 points show work you guys in advanced < 3