Faye is 5 ft 5 in. faye is 10 in. shorter than her older brother. how tall is faye’s older brother?

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?

What are the exclude value of mn+3m

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?