Answer:
412.8
Explanation:
The price of one set of sheet is

Here Carla wants to buy 8 sets of sheets; however, there is a 2x1 discount, this means that the price she pays will be the price of only 4 sets of sheets, so:

However, we are also told that there is an additional 20% discount.
The amount of the discount is:

So the discounted price will be:

So, Carla will pay 412.8 soles.
Natural factors such as terrain, rivers and sunlight influence the construction of settlements at both regional and local levels. This gives settlements certain characteristics of distribution, scale, hierarchy and morphology.