I really need help with this?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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.