The ratio of the lengths of the radii of two spheres is 2:5. What is the ratio of the volumes?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.