Eight and one tenths plus negative two and nine tenths

What is the best reason for jacinta to have a savings account in addition to a checking account

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?