Answer:
15.1
Explanation:
The tenths place is next to the .
1 - tens
5 - ones
.
0 - tenths
6 - hundredths
To round you look at the digit to the right of the tenths place so you look at the 6
If its lower than 5 you keep the number in the tenths place the same
If its higher than 5 you + 1 to whatever number is in the tenths place
So 0 (in the tenths place) + 1 = 1 and you cut out the number next the the tenths place
So the new decimal is
15.1