Tamako withdrew $50 from her savings account each month for 4 months. What mathematical expression represents the total change in the balance of Tamald's savings account after 4
months? What is the value of the expression?

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

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.