Ineed i would really whoever answers this for me

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

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Explain how you can use the associative property to evaluate (7x50)x4.