Andrea bought a box of 25 pens. Inside the box were 4 red pens, 5 black pens, 6 purple pens and the rest were blue pens. What percent of pens were blue?

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.