If f(x) = 2x2 + 5 and g(x) = x2 – 2, find (f – g)(x).
a. x2 + 7
b. 3x2 + 3
c. 3x2 + 7
d. x2 + 3

What is the percent of increase for a population that changed from 438,000 to 561,000

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?