Find the product.
(3a - 2b)(3a + 3b)
Enter the correct answer.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4