A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red marble is 1 in 5. Yasmine returns the marble to the bag and adds five more red marbles to the bag. The probability that she takes one red marble at random is now 1 in 3. How many red marbles were originally in the bag?

Solve this equation using an algebraic method: (x + 4)( x - 4) = 9

Which of the words below is spelled incorrectly?

which sentence uses the subjunctive?

Which one is correct?

What is the fastest fish in the ocean?

What is the term for the natural boundary in North America separating waters that flow into the Atlantic Ocean from those that flow into the Pacific Ocean?

Edward Teach was a notorious English pirate better known by what nickname?

Bobby Fischer is considered by many to be the greatest player of all time in which game?

In what ocean did the Titanic sink?

What was the name of Michael Jackson's first solo album as an adult?

How many feet are in a mile?

Which artist created the sculpture "The Thinker"?

What is the smallest planet in our solar system?

What is the name of the main protagonist in the Legend of Zelda series of video games?

What is the only man made object that you can see from the moon?

What is the capitol of Australia

What artist painted a mustache on the Mona Lisa

What country could you find 80% of the worlds tallest mountains?