Which function has only one x-intercept at (-6; 0)? f(x)=x(x-6)f(x)=(x-6)(x-6)f(x)=(x+6 )(x-6)f(x)=(x+6)(x+6)

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.