Final answer:
Ellis elf's gross income for the month will be $1,200, as his salary is a fixed monthly rate, not dependent on the number of days worked.
Step-by-step explanation:
The student is asking about gross income calculation based on a monthly salary and varying work days. Since Ellis the elf is a manager who earns a fixed salary of $1,200 per month, the number of days worked in the month does not affect his monthly gross income. Regardless of whether he worked 28 days last month or 33 days this month, his gross income for this month will still be $1,200. This is because his salary is not based on the number of days worked, but rather a fixed monthly rate.