In right triangle, ABC, AB = 3 and AC = 9, and the measure of angle A is 90 degrees. What is the measure of angle B to the nearest degree?

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.