A scientist is working with 9 meters of gold wire. How long is the wire in millimeters?

Be sure to include the correct unit in your answer.

The length of the wire in millimeters is 9 * 10² mm.

Step-by-step explanation:

1 meter is equal to 1000 millimeters. This is the ratio that we use to convert a length in meters to one in millimeters.

0.9 m * (1000 mm / 1 m) = 900 mm = 9 * 10² mm (we round off to 1 significant figure)