6 8
A blue whale weighs 3 x 105 pounds. A narwhal
weighs 4 x 10pounds.
Which of these comparisons of the blue whale's
and the narwhal's weights is correct?
This is wrong

Add or subtract polynomial : –12qr? +13rq?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

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?