Write the relatioship between the values of the given digits
the 6s in 6,600

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62