Answer:

Explanation:
We are asked to find the minimum possible value of decimal 18.6.
We can see that our given number is rounded to nearest tenth.
We can see that the tenths digit is 6, which is greater than 5. This means that hundredths digit is either 5 or greater than 5.
The number would be any digit:
.
We are told to find the minimum possible value of decimal 18.6, therefore, our value would be
.