Final answer:
Bruno earned $135 last week by multiplying his hourly salary of $6.75 by the 20 hours he worked, which corresponds to option D.
Step-by-step explanation:
The student's question is about calculating Bruno's earnings based on his hourly salary and the number of work hours he completed last week.
To find out how much Bruno earned, we can multiply his hourly salary by the total hours he worked:
- Hourly salary: $6.75
- Number of work hours last week: 20 hours
Using the formula Earnings = Hourly Salary × Number of Work Hours, we calculate:
Earnings = $6.75 × 20 = $135
Therefore, Bruno's earnings for the week are $135, which corresponds with option D.