what is as big as an elephant but does not weigh as much as an elephant ill give a brainiest to the first correct answer

Bring the fraction a/a-4 to a denominator of 16-a^2

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

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?