Answer please thanks

In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

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

How do you use the elimination method for this question? explain, because i really want to understand!