Could some one help me please

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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.