Side a=15 and side b=20 what is side c

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

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.

It says factor each expression 49x-28?