Solve for k help bestiesss

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

Which of the following is the sum of 3 1/6 + 6 3/8?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay