If i could mark brainiest i would. . due today!
find the value of the following expression: (2^8 x 5^-5 x 19^0)^-2 x (5^-2/2^3)^4 x 2^28
write your answer in simplified form. show all of your steps.

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?

Standard deviation of 19,29,21,22,23

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.