natalie took out a $38,000 student loan with a fixed interest rate to pay for college. natalie did not make payments on her loan for a period of 7 years. after this time period interest had accrued, resulting in the loan balance increasing to $67,000. what is is the 7-year growth factor for the amount that natalie owes on the loan? what is the 7-year percent change for the amount that natalie owes on the loan? % what is is the 1-year growth factor for the amount that natalie owes on the loan? what is the 1-year percent change for the amount that natalie owes on the loan?