You can think about the total area of the surface of the pool as the sum of the areas of the swimming sections and the other sections. Write an expression that represents this way of thinking about the total area of the surface.

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday