A doctor prescribes 225 milligrams of a therapeutic drug that decays by about 25% each hour. To the nearest hour, what is the half-life of the drug?

3. solve the given inequality and graph the solution on a number line.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers