For the following linear systems, select which equation would mana substitution the easiest ?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

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.