Final answer:
Marco has a variable salary because it is commission-based and varies with the amount of sales he makes. This should be considered alongside factors like minimum requirements and minimum wage when looking for jobs.
Step-by-step explanation:
If Marco is a retail sales clerk with a commission-based salary, then his earnings would vary depending on the amount of sales he makes.
This means that Marco's salary is variable, not fixed.
Unlike a fixed salary, which remains the same regardless of performance, a commission-based salary fluctuates based on the individual's sales performance.
To decide on what job to take, one should consider the minimum requirements for different job positions as well as the potential earnings, which may include base salary and commission.
It's essential to look at the minimum wage and other financial factors when analyzing job offers.
If one is considering a commission-based role, one needs to be comfortable with a variable income that depends on one's sales abilities.