Answer:
76 months
Step-by-step explanation:
If Lisa only pays the $20 minimum monthly payment, it will take her 76 months to repay her debt (6 years and 4 months). She will also end up paying almost $540 in interest.
If you have a credit card it is never a good idea to pay only the minimum monthly payment since you will end up paying a lot of interest and usually other fees and charges apply.