A microscope shows you an image of an object that is 20 times the object's actual size. So the scale factor of the enlargement is

20. And insect has a body length of 15 millimeters. What is the body length of the insect under the microscope? (1 point)
• 3,000 millimeters
• 20 millimeters
• 200 millimeters
• 300 millimeters

The body length of the insect under the microscope would be 15 millimeters x 20 = 300 millimeters.

Therefore, the body length of the insect under the microscope is 300 millimeters.

So, the correct answer is:
• 300 millimeters