I just need help making sure i’m right could somebody help

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.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x