Which expression is not equivalent to 8 + (n – 4)? 12+n
n+4

(8 + n) – 4
(8 – 4) +n

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.