Which of the following is equivalent to the expression 9x2 - 16? (3x – 4)(3x + 4)
(9x - 4)(9x + 4)
(3x - 8)(3x + 8)
(3x - 4)2

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Which is the focus of a parabola with equation y2=4x