Symbols stand for
`gt` (greater than)
= (equal to)
`lt` (lesser than)
`ge ` (either greater than or equal to )
` le` (either lesser than or equal to)
`-[{sqrt(324) - sqrt(256)} xx - 4.5] = (?) `

Options

A. `-7`
B. 8
C. `-8`
D. 9

Explanation

To solve the equation \(-[ \sqrt{324} - \sqrt{256} ] \times -4.5 = (?)\), we will follow these steps:

### Step 1: Calculate \(\sqrt{324}\) and \(\sqrt{256}\)

\[ \sqrt{324} = 18 \quad \text{and} \quad \sqrt{256} = 16 \]

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