Estimate the:
length of a pen
length of a swimming pool
length of a marathon race

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)