Suppose u={0, 1, 2, 3, 4, 5, 6}, a={2, 4, 6}, and b={1, 2, 3}. tell whether each statement is true or false. a⊆u true or false

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.