To perform the given operation and express the answer in the correct number of significant figures, follow these steps:
1. Divide the given value of 1,305 m² by the value of 42 m.
1,305 m² / 42 m = 31.07142857...
2. Identify the least precise value in the calculation. In this case, it is 42 m, which has two significant figures.
3. Round the result to match the least number of significant figures. In this case, round the result to two significant figures.
31.07142857... ≈ 31
Therefore, the answer is approximately 31, expressed to the correct number of significant figures.