Please help me this is due today I only have these two left plz help

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

Me find the answer and explain the process to find the answer of the problem appreciate it : )

Pierre is covered by his employers group major medical plan. his employer pays for 75% of the premium and he pays for 25%. how much would a $10000 benefit be taxable as income under this plan