Water makes up about 71% of Earth's surface, while the other 29% consists of continents and islands. 96% of all Earth's water is contained within the oceans as salt water, while the
remaining 4% is fresh water located in lakes, rivers, glaciers, and the polar ice caps.
If the total volume of water on Earth is 1,386 million cubic kilometers, what is the volume
of salt water? What is the volume of fresh water?

Step-by-step explanation:

The question gives you numbers that you don't need to answer the question.

Salt water = 96/100 * 1,386 * 10^6 million km = 0.96 * 1386 * 10^6 = 1330560000 = 1.33056 * 10^9

You can find the fresh water amount by subtracting from 1385 * 10^6  which gives 1386 * 10^6 - 1.33056 * 10^9 = 55 440 000 cubic km

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925