What is 19.2×108 minutes in hours? 1.152×1011 h 3.200×109 h 1.152×107 h 3.200×107 h

The answer to this question would be: 3.2 x 10^7 hours

To answer this question, you need to know how many minutes in an hour is, then convert the minutes into hours. To do this, you just need to divide the number with 60 minutes/hour. The calculation would be:

19.2×10^8 minutes / (60 minutes/hour) = 0.32 x 10^8= 3.2 x 10^7 hours

What am i doing here. add?