Choisir un nombre prendre le double retirer 1 multiplier le résultat par 4 annoncé le résultat​

Asap 25 pts + brainlest to right/best answer

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.

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start