D. Marco Polo
Explanation: All of the others where conquistadors from europe who were enlisted by royal families
To get the equation follow the steps below.
1. She's renting the car for 5 days and we understand that its $36 per day so you must multiply $36 × 5 = $180.
2. Next we know that its $0.50 per mile over 100 miles and needs to go 180 miles so multiply
$0.50 × 180 = 90
3. This is the final step add,
$36×5=$180
[$0.50×180=$90] Now add $180+$90=$270.
I hope this helps.
Permafrost refers to the fact that the ground in high latitudes which is permanently frozen - that is, which does not defreeze in the summer. It does not defreeze because it is isolated by soil - this is the correct answer - from the warmer air, so it is actually not in touch with the positive temperatures.