An ellipse is represented by the equation . x-5^2/625 + y-4^2/225 = 1
Each directrix of this ellipse is a from the center on the major axis.
(A)horizontal line that is 20 units
(B)vertical line that is 20 units
(C)horizontal line that is 31.25 units
(D)vertical line that is 31.25 units

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.