If Anastasia makes a good salary but wants to be sure she has good credit . The best thing she can do to improve her creditworthiness is: She should pay down her student loan and credit card debt.
Creditworthiness is used to determine the ability of a borrower to repay back the money lend to them based on the loan past loan history. A person with a good creditworthiness  has the tendency of borrowing from a lender based on the fact that the lender believe that they will repay back based on  the borrower credit score.
Based on the given scenario in order to improve her creditworthiness she should pay down her student loan and credit card debt as this will give her higher chance of been given loan.
Therefore If Anastasia makes a good salary but wants to be sure she has good credit . The best thing she can do to improve her creditworthiness is: She should pay down her student loan and credit card debt.
Learn more about Creditworthiness here:https://brainly.com/question/19986579
#SPJ1