In how many ways can 12 jelly beans be lined up if there are 3 green, 2 purple, and 7 yellow jelly beans?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Runner ran 1 4/5 miles on monday and 6 3/10 on tuesday. how many times her monday’s distance was her tuesdays distance

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500