Find the number of significant figures in the `2.520 xx 10^7`

Explanation

To find the number of significant figures in the value \(2.520 \times 10^7\), we can follow these steps:

### Step 1: Identify the Non-Zero Digits
In the number \(2.520\), the digits \(2\), \(5\), and \(2\) are non-zero digits. According to the rules of significant figures, all non-zero digits are considered significant.

### Step 2: Identify the Zeros
Next, we look at the zeros in the number \(2.520\). There is one zero which is located between the digits \(5\) and \(2\). According to the rules, zeros that are between non-zero digits are also significant.

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