So if this snail is moving at a rate of 43 mm every minute, and you need to find how many centimeters he will move in 5 minutes, you would have to multiply the amount he moves in one minute, which is 43, and 5 minutes.
43 × 5 = 215
The snail moves at a rate of 215 mm in 5 minutes. But we need to find the amount of centimeters, so we would convert the millimeters to centimeters. There are 0.1 centimeters in 1 millimeter. There are 21.5 centimeters in 215 millimeters.
He moves 21.5 centimeters in 5 hours.