Question

write the length in inches.

Explanation:

Step1: Identify the start and end points

The object starts at the 0 - inch mark (since it's aligned with the left - most part of the ruler) and ends at the 3 - inch mark (looking at the ruler, the end of the object is at the 3 - inch line).

Step2: Calculate the length

The length of an object measured with a ruler is the difference between the end point and the start point. So, length $l = 3 - 0 = 3$ inches.

Answer:

3 inches