John wants to buy a new laptop computer the computer store sells laptops for $480 or 9 credit payments of $58 how much interest would john pay if he paid for the computer with credit ?

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.