Bryan is setting in rows with 50 black chairs and 60 white chairs each row will have the same number and color in each room what is the greatest number of chairs? and how many rows of each color will there be

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.