Class A had a mean of 73.5 and Class B had a mean of 82.4. Both classes had a MAD about 4. What it the difference of the means as a multiple of the MAD? Round your answer to two decimal places.

What is the standard form of -5x^2+2x^4-11+x^3+3x

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

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?