78
39
7.6923
To round 391 to the nearest ten, we look at the digit in the tens place, which is 9. Since 9 is greater than or equal to 5, we round up. So, 391 rounded to the nearest ten is 400.
15.3543
78
390
390
390
390
0.0667
390
390 divided by 60 is 6 with remainder 30.
39
6.7241
7.6923
19.5