Ana agrees to pay 8% simple interest for a computer over 3 ana agrees to pay 8% simple interest for a computer over 3 years. Part A

If Ana pays a total of $312 in interest, how much money did the computer cost?

$

Part B

If the simple interest rate were 5% instead of 8%, how much would Ana save in interest?

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.