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First find 10% which is £55Next find 1% which is 55/10 = £5.50As 12% = 10% + 1% + 1%,12%= £55 + £5.5+ £5.5= £66

Because if we simply expand (x+y)² we'd get x²+y²+2xy which shows that there's an extra term which is 2xy. another practical way to check your work and see why LHS ≠ RHS i...

The Chinese script is not an alphabet like in English; instead, it uses characters to represent whole words, often based on their meaning rather than their pronunciation. For example, the character 木 mean...

recognise this equation has the form ax^2 + bx + c =0. An equation with this form is a quadratic. Recognise in a quadratic equation there will be 2 values of x that will equal 0. These 2 values wil...

To get the smallest value of w-x we will need the smallest value of w and the largest value of x.Our smallest possible value of w=41.Our largest possible value of x=29.So the smallest value of w-x = 41-29...