If 12 1/2% of a sum of money is $40, what is the total sum of money?

Evaluate cos2θ for cosθ = square root of 3/2

Find the commission on a $590.00 sale if the commission is 15%.

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32