Can someone answer. there is one problem. there's a picture.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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?

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =