What is the surface area of the triangular prism? A. 13 in.2
B. 36 in.2
C. 78 in.2
D. 84 in.2

How do you use the elimination method for this question? explain, because i really want to understand!

For each proportion find the unknown number x 1/5/8=×/15

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.