PLS HELP ME
Fine the circumference

What is the pattern in the values as the exponents increase?

Ill mark the brainliest if you me with the these three questions 7,8,9

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.