A dentist sees 30 patients and finds 6 have cavities. What is the experimental probability that a patient chosen at random has a cavity?

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

What number is 7 units left of -15?

Which expression is equivalent to -12(3x-3/4)