Niah works as a retail sales clerk earning $18,000 per year. she plans to go to school for medical billing that has a median
salary of $35,000. the cost of her education will be $20,000. if niah does not work for the 2 years that she is in school,
about how long will it take her to recover her investment if she gets a medical billing job making the median salary when she
graduates?
a. less than 1 year
b. 1.2 years
c. 1.6 years
d. 3.3 years