A downtown parking lot charges $5 per hour for the first 2 hours, then $2.50 per hour after that. Which equation(s) describes the total cost y as a function of the hours x?

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.