If f(x)=x^2-2 and g(x)=x-3, what is (f o g)(x)?

Which shows the pre image of triangle xyz

Me because some of question i don’t understand

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.