Is the product of 2 natural numbers always a composite number?
Give an example

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Factor and solve to find roots x squared -x - 90 =0

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