Consider the quadric function f(x)=9x^2+30x+25=0

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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.