The critical points of a rational inequality are x = _4 and x=2 Which set of points can be tested to find a complete solution to
the inequality?
x= -4 and x = 2
x=-5 and x = 3
x= -5.x=0, and x = 3
x=4.x=0, and x=2

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.