Answer:
5:15
Step-by-step explanation:
15:55 = 3:55 in normal time
3:55 + 1 hr = 4:55
4:55 + 20 min = 5:15
The set of whole numbers includes all the elements of the natural numbers plus the number zero (0).
Just multiply 9 to the temperature in Cleveland.

So the temperature in International Falls is -18<span>°F.
It's not 18, because 18 is warmer than -2, not colder and the question says that International Falls is 9 times <em>colder </em>than Cleveland.</span>
2/5 are minivans which is also 20 minivans