Which of the following expressions is the inverse of the function y = 3x + 4?

a) y = 3x − 4
b) y = −3x − 4
c) y equals quantity x minus 4 divided by 3
d) y equals quantity x plus 4 divided by 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

Sum is 17 and their difference is 3

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?