A contestant on a game show has 60 points. She answers a question correctly to win 30 points. The she answers a question incorrectly and loses 55 points. What is the contestant's final score?
What’s the answer?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

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?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?