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caves are mostly formed on cliffs facing the ocean. If you go through in your head the conditions of that cliff it should help you answer this question. If the cliff is facing the ocean then waves will be hi...

A normal good is a good in which as your income rises your demand for that good also rises. And if your income falls your demand for that good also falls. The best way to learn about normal goods is with exa...

First of all you need to separate the two numbers you have 8Y and 4y2 then ask yourself what you can divide both these 2 numbers with? so 4 can be divided by 4 and 8 can be divided by 4. so we can divide bot...

The demand for a good which is elastic will react significantly to a change in price of a good. So if I was selling mars bars in a shop ( and mars bars were an elastic good) if I increased the price of a mar...

If you imagine that sin(x), cos(x), -sin(x) and -cos(x) are on a wheel as shown below: sin(x) -cos(x) cos(x) -sin(x) then going clockwise around the wheel you have what each term differentiates to, so sin(x)...