<u>Answer:</u>
○ $620
<u>Step-by-step explanation:</u>
• To calculate the amount that the tutor earned that week, we can first calculate the total amount of time they spent tutoring:
total time spent = 5.5 hours + 10 hours
= 15.5 hours
• Now that we know the total tutoring time, we can calculate the amount they earned:
⇒ In 1 hour, the tutor earns $40.
∴ In 15.5 hours, the tutor will earn = 15.5 × 40
= $620
Therefore, the tutor earned $620 that week.