Quadrilateral ABCD is a parallelogram .if angle A=3x° and angle c=120 then find the value of x​

15 point ! ~ see if you know the answer to both you!

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

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.