Susie's bank account balance for January was -$100,$300,$475,-$200,-$250, and $500. What is the range of Susie's bank account balance over 6 month period?

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?

Use the distributive law to multiply. 3(4x + 5y + 6)

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?