Need help with this please (I’ll give brainlist to the correct answer )

Explain how you can use the associative property to evaluate (7x50)x4.

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.

Need asap. solve for the following inequality