Macy was asked to compare the two ratios 4:5 and 19 to 30. Her work is shown below which us true

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 solution to the equation e3x=12? round your answer to the nearest hundredth

Me i’m stuck on all these questions besides the two bottom ones