How many numbers are there between 100 and 1000 such that every digit is either 2 or 9?

Explanation

To solve the problem of how many numbers are there between 100 and 1000 such that every digit is either 2 or 9, we can follow these steps:

### Step 1: Identify the Range
We are looking for numbers between 100 and 1000. This means we are considering three-digit numbers.

### Step 2: Determine the Digits
Each digit of the three-digit number can either be a 2 or a 9. Therefore, for each digit, we have 2 choices.

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