Projectile is launched into the air. the function h(t) = -16t4 + 32t + 128 gives
the height, h, in feet, of the projectile t seconds after it is launched. after how
many seconds will the projectile land back on the ground?

it is for factor form of a quadratic function

Eiko is wearing a magic ring that increases the power of her healing spell by 30%. without the ring, her healing spell restores h health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?