A computer can download 360 MB of a movie in 30 seconds. If the average internet speed increases by 8mbps then how long will it take to download the entire movie of 2.4 GB

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?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?