Which could be a step used when solving the equation 5x+10=7.5x? distribute 5

distribute 10

add 10 to both sides

subtract 5x from both sides

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.