Prove that the diagonals of a parallelogram bisect each other.
the midpoints are the same point, so the diagonals
b(2b, 2c)
c(2a + 2b, 2c)
d(20, 0)
given: parallelogram abcd
prove: ac bisects bd, and bd bisects ac.

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.