Answer:
Because we actually divide by 10 when a number is multiplied by 0.1.
Step-by-step explanation:
Let
be a number.
When we multiply a number by 10:
(One '0' is increased in the number)
For example:

Considering a decimal number:

Multiplying a number with 0.1 (which is actually
) means dividing the number by 10.

Considering a decimal number:

<em>Therefore, When multiplying a number by 0.1, move the decimal to the left.</em>
Answer is provided in the image attached.
16 months ! i used m to represent the number of months, and you would do
1) 8,000 = 500m
2) divide by 500 on both sides
3) 8,000/ 500 = 16
4) 16 = m