Convert 45°C to Fahrenheit.
°F

The heaviest 16% of all men in weight weigh more than how many pounds ?

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

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?