Which of the following numbers has 4 significant figures?

Which of the following numbers has 4 significant figures?

Step 1: Understand what significant figures are. Significant figures are the digits in a number that contribute to its precision.
Step 2: Identify the rules for counting significant figures. Non-zero digits are always significant. Any zeros between significant digits are significant. Leading zeros (zeros before the first non-zero digit) are not significant. Trailing zeros (zeros after a decimal point) are significant if there is a non-zero digit before them.
Step 3: Look at the number 25.00. It has two non-zero digits (2 and 5) and two trailing zeros after the decimal point.
Step 4: Count the significant figures in 25.00. The digits 2, 5, and the two trailing zeros are all significant, making a total of 4 significant figures.
Step 5: Compare with other numbers (if provided) to see if they have 4 significant figures as well.

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