The value 0.1 meter is equivalent too what? decameter, decimeter, or hectometer

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Consider the function f(x)=-5x+3 what is f(-2)

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.