Students in a music program gradually increase the amount of time they practice. The first week, they practiced 20 minutes per day. Each week thereafter, they increased their practice time by 50% until they practiced an hour per day. In what week of the program did the students begin practicing an hour per day? *

a. week 5
b. week 4
c. week 3
d. week 2

What signals you that factoring by grouping is the best method to use when factoring a problem?

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?

If you could answer these your a life saver