Can someone explain letter c?! From where did 13 come from there’s no 13 in the question..

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

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.

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?