Evaluate, correct to the nearest whole number \(7\frac{1}{2}-\left(2\frac{1}{2}+3\right)\div\frac{33}{2}\)
Find the equation whose roots are 2 and \(-3\frac{1}{2}\)
A man bought 220 mangoes at N5x. He sold each for 3x kobo and made a gain of N8. Find the value of x