Martin, an accountant, observes that his company purchased refrigerators at a cost of $300 and is currently selling them at a price of $849. What is the mark-up percentage?

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.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?