A starfish’s top speed is approximately 161 centimeters per minute. What is this speed to the nearest centimeter per second?

There are 60 seconds in a minute, so convert 161 centimeters per minute by dividing by 60: 161 ÷ 60 ≈ 2.68 centimeters per second. Rounded to the nearest whole centimeter per second, this is 3 centimeters per second, choice B.

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