What number goes in the missing space?

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

What is 1/2 x (6 x 4)+3 + 2 show your work

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.