Use the tables to answer the question.

To compare how much time Marco and Maribella spend on homework per day, we can calculate the average time spent per day based on the data provided.

**Marco’s Homework:**
- For 3 days: 3.25 hours → average = 3.25 / 3 = 1.083 hours/day
- For 9 days: 9.75 hours → average = 9.75 / 9 = 1.083 hours/day
- For 12 days: 13.0 hours → average = 13.0 / 12 ≈ 1.083 hours/day
- For 30 days: 32.5 hours → average = 32.5 / 30 ≈ 1.083 hours/day

Marco has a consistent average of approximately 1.083 hours spent per day on homework.

**Maribella’s Homework:**
- For 4 days: 4.2 hours → average = 4.2 / 4 = 1.05 hours/day
- For 8 days: 8.4 hours → average = 8.4 / 8 = 1.05 hours/day
- For 20 days: 21.0 hours → average = 21.0 / 20 = 1.05 hours/day
- For 28 days: 29.4 hours → average = 29.4 / 28 ≈ 1.05 hours/day

Maribella also has a consistent average of approximately 1.05 hours spent per day on homework.

**Comparison:**
- Marco: approximately 1.083 hours/day
- Maribella: approximately 1.05 hours/day

From this comparison, it's clear that Marco spends more time on homework per night than Maribella.

The correct statement is:

**Marco spends less time on homework per night.**