Abag contains 5 red marbles and 4 green marbles. what is the probability of choosing a red marble then a green marble, without replacement?

 The required probability is

Step-by-step explanation:  Given that a bag contains 5 red marbles and 4 green marbles.

We are to find the probability of choosing a red marble then a green marble, without replacement.

Total number of balls in the bag = 5 + 4 = 9.

The probability of choosing a red marble is given by

Since the second balls is chosen without replacing the first ball, so

the total number of balls remained in the bag = 4 + 4 = 8.

And the probability of choosing a green ball without replacement is

Therefore, the probability of choosing a red marble then a green marble, without replacement is given by

Thus, the required probability is

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.