Find the length of the missing side. if necessary, round to the nearest tenth.
a. 30
b. 15
c. 21.3
d. 7.7

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

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?