The total land surface area of Earth is about 57,308,738 square miles, of which about 33% is desert and about 24% is mountainous. Subtracting this uninhabitable 57% (32,665,981 mi2) from the total land area leaves 24,642,757 square miles or 15.77 billion acres of habitable land
"So the percent change from 5 to 7 is: 2/5 = 0.4 =40%."
Answer: it is depends on what unit of measurement your look looking for
I don’t see no options? But if you simplify the answer is -30x^2 - 4x + 8 hope it helps