The ratio of marbles to stones is 5 to 7 if there are 35 marbles how many stones is there?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

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?

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start