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A tariff is a tax imposed on imports or exports. Tax is an expense and hence increase the price of the goods and services. As price increases, demand decreases. Consequently, suppliers are discouraged ...

It can seem pretty daunting when you sit down to write a History essay, but these tips will hopefully make it a lot easier. Planning Make sure you plan your essays before you write them. ...

To factorise 3a³b + 12a²b² + 9a⁵b³, we need to deal with like elements together.Start with the integers. The highest common factor of 3, 12, and 9 is...

To do this, we first need to calculate the prime factorisations of 432 and 522, that is to say we need to break the numbers down into their prime factors.Let's start with 432. 432 = 2 x 216432 = 2 x ( 2 x...

We can calculate the area of a circle using the following formula:A = pi x r²The area we are given is 16pi. Therefore, we can divide both sides by pi. So,16pi = pi x r²becomes16 = r<...