What is the value of 642/3?

Triangle xyz has vertices x(1,3), y(0,0)

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.

Simplify. 3(4+4x) (type your answer in with no spaces)