Determine whether the following statement is true or false. The union of two sets is the sets of all elements that are common to both sets

What is the inverse of the function f(x) = 2x + 1?

What is the slope of the line shown below?

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.