In which quadrant of the coordinate plane will the ordered pair (2,-3)

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

What is the difference between regular convex and concave polygons

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2