Number 10 find x
I don’t know how to find the answers

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

Josephine has a great garden with and area of 2x2 + x - 6 square feet

Does the point (1, sqrt 7) lie on circle shown.