There is a bag with only red marbles and blue marbles. The probability of randomly choosing a blue marble is
2
9
.
There are 45 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)