What is the place value of the 6 in the number 8405.236?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

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?