Scott's monthly income is $3500. scott spends 12% of his monthly income on groceries. calculate the amount of scott spends each month on groceries.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

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?