What two fractions name the partof the marbles that are black? f: 2/6 and 1/3 g: 2/4 and 1/2 h: 6/8 and 3/4 j: 2/8 and 1/4

What is the greatest common factor of 6a, 8a^{2}, and 14?

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 =

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?