What is the least possible value of \(\frac{9}{1 + 2x^2}\) if 0 \(\geq\) x \(\geq\) 2?

A man bought wrist watch for N150 but was only able to sell it for N120. Find the loss per cent on the transaction

Find the median of the set set of numbers 110, 116, 113, 119, 118, 127, 118, 117, 113

If f(x - 2) = 3\(x^2\) + 4x + 1. Find (1).