At 5 seconds, an object's velocity is 9 meters per second. at 8 seconds, the object's velocity is 25 meters per second. assuming a constant acceleration, what is the acceleration in meters per second per second of the object? (if necessary, round to the nearest hundredth.)

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.