The table at right lists postage for letters weighing as much as 3 oz. You want to mail a letter that weighs 0.8 oz. Graph the step function. How much will you pay
in postage?

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

In the diagram of circle a what is m

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.