What is the difference between adding and Subtracting radical expressions versus multiplying and dividing radical expressions?

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 function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x