The length of a blue whale is approximately 3 × 104 millimeters; the length of an otter is 2 × 103 millimeters. how many times longer is the blue whale than the otter?
1.5 millimeters
2 millimeters
10 millimeters
15 millimeters

 Last option is correct.

Step-by-step explanation:

Since we have given that

Length of a blue whale is given by

Length of an otter is given by

Number of times the blue whale is longer than the otter is given by

Hence, Last option is correct.

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step-by-step explanation:

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step-by-step explanation: