I need help with the whole thing! ASAP

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.

Which number completes the inequality? 2/3 < _ < 7/9

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.