Lamar's teacher drew a figure and told the children it's a regular polygon. Which of the following would BEST represent the perimeter of the shape can you please help me asap

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form