Question

What rule could you use to get from an input in weeks to an output in days? Keep in mind, there are 7 days in a week.
input
number of weeks old
rule
Input Output Arrow

Input Output Arrow
output
number of days old
multiply by 7
multiply by 1/7
divide by 7

Answer 1

To convert the input of weeks to an output in days, you would use the following rule:

**Rule:** Multiply the number of weeks by 7.

**Input -> Output Arrow:**
```
(number of weeks old) → (number of days old)
```

This can be expressed mathematically as:
```
number of days old = number of weeks old × 7
```

To summarize:
- **Input:** number of weeks old
- **Output:** number of days old
- **Rule:** Multiply by 7