Which expressions are equivalent to -56z+28? A.) 1/2⋅(-28z+14)

B.)(-1.4z+0.7) x 40

C.) (14-7z)⋅(-4)

D.)(8z−4)(−7)

E.)−2(−28z−14)

PLEASE HELP THANK YOU

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.