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A trying moment in its history, Spain needed to modernise and change its way of life, if it wanted to join its neighbours in the 20th century. The reforms needed to achieve this and their fallout, histori...

Although protectionist policies are generall considered to have more negative effects than positive ones, there are certain instances in which they can be very beneficial. One of those instances is the in...

This question can be answered by the elimination method, substitution method or graphically. I find the elimination method easiest, especially when you can see that the coefficient of a variable (in this ...

First of all, you want to get all your data in the same units, so either in pounds or kg. Here, as you are told that 1kg = 2.2 pounds, it seems easier to convert the amount of potatoes from 30kg into poun...

First, we need to separate the RHS as components of U and V. Using the LATE (logarithms, algebra, trigonometry, exponentials) technique, we see that logarithms have priority to algebra hence U = lnx and d...