Don breaks a 4×7 array into a 2×7 and another array. what is the fact for don's second array?

Graph y = -|x| + 2. click on the graph until the correct one appears.

How can constraints be used to model a real-world situation?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?