How many solutions does the equation (x-7)^2-27=37 have?

Me what is the value of x? showing work would be appreciated - ! : )

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?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.