Balls numbered 1 through 6 are arranged in a difference triangle so that in any row, the difference between the larger and the smaller of two successive balls is the number of the ball that appears below them.
Fill in the missing balls to form a difference triangle.
a=
b=
c=
d=

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Which of the following scenarios demonstrates an exponential decay

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?