Diallo says that the value of 12-is 81. How did he get that answer.

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

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?