A person plans to invest a total of $6500 in one bank account at 4.5% annual interest and another bank account at %18 annual interest. How much should he invest in each account so that the total interest in one year will be $495?

Technician a says that a cylinder leakage test fills the cylinder with compressed air and the gauge indicates the percentage of leakage. technician b says that a compression test can be used to test the condition of connecting rods. who is correct?