To find how many miles the whale swims in 16 days, we first need to determine the daily swimming rate.
The whale swims 200 miles in 5 days, so the daily swimming rate is:
\[ \text{Daily Rate} = \frac{200 \text{ miles}}{5 \text{ days}} = 40 \text{ miles per day} \]
Now, to find out how many miles the whale swims in 16 days, we can use the equation:
\[ y = 40 \times 16 \]
So the correct response is:
y = 40 × 16.