The population of brasilia, brazil's capital, is about 1/85 of the country's population. what fraction of the total population of south america lives in brasilia?

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8