Michael has a drawer with 8 pairs of black socks and 12 pairs of white socks . Without looking he takes a white piece of socks out of the drawer. What is the probability that the next pair he takes out is black?

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

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.

X+ y = 5 ; x - y =3 solve using linear combination