What is the vertex of B

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

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

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.