Final answer:
Terra ran approximately 4.96 miles when converting 8 km using the conversion rate of 1 km equals 0.62 miles. The number closest to this would be 5 miles.
Step-by-step explanation:
It appears there is a discrepancy in the question provided. Terra cannot run both 8 km and 1.6 km at the same time, so we'll ignore the 1.6 km as a potential typo. To answer how many miles Terra ran, we should convert the known distance in kilometers to miles. We can use the conversion factor where 1 km equals approximately 0.62 miles.
Here's the calculation for the conversion:
8 km × 0.62 miles/km = 4.96 miles
The number closest to 4.96 miles would be 5 miles, therefore, the correct answer is b) 5 miles.