Answer: 390 centimeters
Step-by-step explanation: In this problem, we are asked to convert 3.9 meters to centimeters which means we use the conversion factor for meters and centimeters.
Conversion factor ⇒ 100 cm = 1 m
Next, notice that we are converting from a larger unit "meters" to a smaller unit "centimeters" and when we convert from a larger unit to a smaller unit we multiply by the conversion factor.
In this case, we multiply 3.9 by the conversion factor which is 100.
(3.90 (100) = 390
Therefore, 3.9 meters is equivalent to 390 centimeters.