Answer:
5,54x10⁵μK/ms
Step-by-step explanation:
To solve this problem you don't need to know what the K is.
You need to know what mean SI prefixes. These prefixes are added at the beginning of an unit to make a new unit. For example a kilometer means 1000 meters, a miligram means 0,001 grams.
In this problem you have 554 K per s. 554K are:
554 K ×
= 5,54x10⁸ μK
1 s are:
1s ×
= 1000 ms
Thus 554 K/s are 5,54x10⁸ μK/ 1000 ms = 5,54x10⁵μK/ms
I hope it helps!