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Adding (and subtracting) fractions is more difficult than multiplying them because we need to make sure that the denominators (bottom numbers) are equal in both fractions. To do this, we may need to change t...

The key to understanding expanding brackets is to understand that we need to multipy EVERYTHING in the first bracket by EVERYTHING in the second bracket. We can think of the calculation (x+a)(x+b) as x(x+b) ...

GDP (output) is affected by consumption, investment, government spending and net exports. A fall in the interest rate have a varying effect upon each of these. Consumption is likely to increase as saving bec...

While one could go into a rather complex answer for this, for an AS level question I would split this into 3 main parts, with a short introduction and conclusion.The short introduction would outline your bel...

Macro economics is the larger picture, how the economy works for the whole country or region. Micro economics examines how things work in a smaller level, examining one industry, business or group of invidiv...