Which one of the following images shows the pre-image and image of a triangle which has been rotated 180° about the origin?

a. image a
b. image b
c. image c
d. image d

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.