a submarine drives 55 meters below its original location and then rises. The number line shows the elevation of the submarine after each event. how far did the submarine rise after diving. What was the original elevation of teh submarine

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.