Helppp me agin guys

If ac = 12 and ab=7 is it possible that bc =10

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.

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?