Mr Cameron places the names of his students in a hat order to randomly call on students. There are 12 girls and 10 boys in the class what is the probability that a boy will be called on?

A. 1/22
B. 5/11
C. 1/10
D. 5/6

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?