Def, fe= 13 and m< =34. find df to the nearest tenth

Which value of c would make he following expression completely factored? 8x+cy

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 best way to answer questions with a x expression in the question. for example 3x + 10x=?