Asystem of equations has 1 solution. if 4x – y = 5 is one of the equations, which of the following below could be the other equation?

a) y = –4x + 5
b) y = 4x – 5
c) 2y = 8x – 10
d) –2y = –8x – 10

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.