Answer:
13.7
Step-by-step explanation:
3/4, x, and y that is the answer
Answer:
x=2.4650
Step-by-step explanation:
I assume that you mean 
so let s use the ln() function

so x = ln(15)/ln(3)
x = 2.4650
I will give u the steps
add up all of the values
then when you find the total lets say its 100% then total percent of cars would be 32%
The following formula is used to find the answer.
D = 50 mg (0.6^n)
D is the dosage
n is at any hour
Using this formula and solving the equation for it, the answer is 18.