You borrow $4000.00 from a friend and promise to pay back $8100 in 5 years. What simple interest rate, to the nearest tenth of a percent, will you pay?

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.